10 Jul 2016 ... 230 grain subsonic powder coated cast lead. 300 blackout 1035 fps. From my new build. function, feed, and target test success!Aug 9, 2022. #1. I got a new AR Platform based rifle in 300 Blackout. I built it myself with Aero Precision and a Proof Research 16" Barrel with Superlative Arms Adjustable Gas Block.. I plan to shoot this suppressed and want to use heavier bullets and stay subsonic. I have Lapua brass because I use it for everything I reload in rifle.300 BLACKOUT SUBSONIC 190 gr. SUB-X™ TAP® Item #80895 10.5" Noveske® 1:8" Muzzle 100 yds 200 yds 300 yds 400 yds 500 yds Velocity (fps) 1047 996 954 917 884 855 Energy (ft lbs) 462 418 384 355 330 308 Trajectory (inches) -1.5 0.0 -33.5 -105.2 -218.3 -375.9 8" LMT 1:8" Muzzle 100 yds 200 yds 300 yds 400 yds 500 yds Velocity (fps) 1041 …Mar 10, 2020 · The .300 BLK bullets are 0.30 inch in diameter (7.62 mm) and the .223 Rem (5.56 mm) is 0.224 inch. A whole new world of hunting and target-shooting options open with that difference, a fact sometimes obscured by the cartridge’s subsonic and military roots. The .300 AAC Blackout also burns powder faster than its .30 caliber siblings. You can also easily suppress a rifle that shoots this round to gain even more advantage. In terms of recoil, you’ll experience about 9 pounds to the shoulder. When it comes to penetration, this caliber performs well.PLEASE ORDER SAMPLE BAG BEFORE MAKING A LARGER ORDER. 300 Blackout Tapered Nose Flat Point 215 grain bullet. Hitek Coated using a special formula that produces a superiour coating. Cast using a 92-6-2 commercial alloy that will produce around 16 BHN. These are standard sized at .309 or .310 Other sizes are …The propellant gas generation rate is appropriate for .300 Blackout, 7.62×39, .30-30, .22 Hornet, as well as many straight-walled large pistol and rifle cartridges where rapid transformation from powder to gas is … For example, 10.5 gr. Accurate 1680 behind a 208 gr. A-Max, 909 fps in the short barrel, 1089 fps in the rifle barrel. Which would suggest to me that, in the case of Accurate 1680 anyway, 8 inches of barrel does not give a complete burn. Faster powders like H110 or Li'l Gun may get a more complete burn. The Bottom Line on 300 Blackout Ammo. The 300 Blackout is a rifle cartridge that’s more powerful than the 5.56 when fired out of a barrel that’s less than 16 inches long. The chief advantage of 300 Blackout is its versatility. You won’t find a cartridge that “does it all” better than the 300 Blackout. Deteriorating smokeless powders produce an acidic odor and may produce a reddish brown fume. (Don’t confuse this with common solvent odors such as alcohol, ether and acetone.) Powder deterioration can be checked by opening the cap on the container and smelling the contents. Powder undergoing deterioration has an irritating acidic odor. This Powder for 300 Blackout was specifically designed for both .300 Blackout cartridges and magnum handguns. If you hold velocity to a really high …AA#7 Sierra lists it for light weight supersonic loadings (135gr and lighter) for 300 whisper, However other powders give much higher velocity. AA2015 is listed in some super sonic loadings for 150gr and above. ... select rifle cartridge and then 300 AAC Blackout Lists loads using: IMR 4227 (subs and supers)2 Mar 2016 ... Does anyone has reloading data for 300 Blackout? Would like to use 100 grain and 110 grain bullets for more FPS. Powders used and grains for ...The following chart shows the usable interior case volume of all popular rifle cartridges, measured in cubic inches and assuming a standard .013″ brass thickness. By “usable case capacity,” I mean the internal area of the body of the case and shoulder, but none of the neck. This would be the space occupied by powder in the case of a flat ...Gauge/Holder 300 AAC Blackout Lee Precision Gauge/Holder 300 AAC Blackout, Silver, Small. 4.7 out of 5 stars. 434. Small Business. Small Business. Shop products from small business brands sold in Amazon’s store. Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them.Reply reply. T800_123. •. A lot of people are going to say CFE BLK and 1680. They work great, but in my experience as well as a lot of people over at 300blktalk they're both noticeably louder when running suppressed subs then other powders. IMR 4227 is my personal favorite, I achieved some pretty good consistent loads and it also is the ...Write a review. $47.99. SKU: 4781658. Designed specifically for .300 AAC Blackout cartridges, Hodgdon® CFE BLK Smokeless Reloading Powder pours easily for accurate measurements, and contains a proprietary Copper Fouling Eraser....300 Whisper / .300 AAC Blackout / .300 Blackout (Using 225 GR Hornady Bullets) reloading data with 45 loads. Using bullets from Hornady BTHP Match. Powders include Accurate, Hodgdon, Alliant, Winchester, Vihtavuori, IMR300 Blackout vs 5.56 conversation is complicated. Despite using the same case and being shot out of AR-15, each excels in different facets. ... Since it’s a smaller round, requiring less material to construct its bullets and a smaller powder charge to launch it, it was also less expensive—particularly compared to its .30-caliber predecessorApr 30, 2015 · April 30, 2015 By Dusty Gibson. The .300 AAC Blackout is likely the most versatile cartridge for the AR-15 platform. In fact, almost every ammo manufacturer loading this relatively newborn wildcat is offering specialized loads for specific purposes. Want to shoot 110-grain .30-caliber bullets at 2,250 feet-per-second (fps) through a 10-inch barrel? Jul 17, 2020 · Cor-Bon subsonic data is: .300 Blackout 240 grain; muzzle velocity 1000 FPS, muzzle energy 533 ft-lbs. That is more muzzle energy than a 230-grain .45 ACP load yet includes the ability to fire more accurately and at greater distance while utilizing the same 30-round magazines you already have. Thinking of going .300 Blackout? Find out how it compares to the 5.56 in ballistics and knockdown power.Users of Russell Simmons' RushCard prepaid card will be getting $10 million payout, the Consumer Financial Protection Bureau on Wednesday. By clicking "TRY IT", I agree to receive ...I'm thinking both of these powders really shine as subsonic powders. H110 Moreso if you do not need the extra gas to cycle say... carbine or unsupressed. From VV page n120 it can cycle 150 grain - 200 grain subs. I know it can cycle up to 240s. I wouldnt use it as a super powder. To slow and can't fit enough in the case. Enables reloaders to duplicate certain factory loaded ammunition. Density designed for proper cartridge fit. Principal Purpose: Magnum Handgun/Pistol. Secondary Uses: .22 Hornet. Remarks: 150529 - 300-MP; 1 lb. bottle. 150530 - 300-MP; 8 lb. canister. Canister Sizes: View All 300-MP Recipes. 300 AAC Blackout Powder Through Expanding Die 300 AAC Blackout Load Data Self-Hosted Help Desk Software by SupportPal. Categories. 2. General 20. Custom Services 27. Dealers 10 — Online Dealers 16 — Outside USA (export) Dealers ...When it comes to powder coating, selecting the right company is crucial. While some individuals may attempt to DIY their powder coating projects, there are several advantages to ch...My latest design is a bullet that weighs 265 grains using 92-6-2. It IS the heaviest cast bullet designed specifically for the 300 Blackout. It was optimized for powders and charge weights used in the 300 …Most factory .300 Blackout subsonic loads are a little more powerful than a routine .45 ACP handgun loading, if we’re going on (the admittedly incomplete) calculated energy figures. So, if you think .45 ACP is a reliable choice for a defensive round, subsonic Blackout beats it. ... The biggest problem I found was the amount of unburnt powder ...A 1-pound box of powdered sugar contains approximately 3 ¾ cups of unsifted powdered sugar. A 2-pound box contains approximately 7 ½ cups of powdered sugar.The following chart shows the usable interior case volume of all popular rifle cartridges, measured in cubic inches and assuming a standard .013″ brass thickness. By “usable case capacity,” I mean the internal area of the body of the case and shoulder, but none of the neck. This would be the space occupied by powder in the case of a flat ...Product – 300 BLK admin 2021-04-27T07:51:30+00:00 300 BLK 144gr AM FMJ Everything from the propellant, brass case and 144gr FMJ bullet of this 300BLK round is made in Australia, by Australians, to deliver an outstandingly accurate low cost round for high volume shooting at the range or in competitions.Accurate #1680 powder may be a better option compared to Hodgdon's Lil gun w/ a pistol length Bbl. Lovex SBR-SOCOM (D063-01) powder is the ticket for subsonic heavies that will cycle in an … – Or, for .300 AAC Blackout loads, try 0,68 g of N120 with 13,0g/200 gr Lapua FMJBT bullet Vihtavuori N120 powder is available in 1 lbs, and 1 kg containers and in the USA also in 8 lbs canisters. 11 Jun 2014 ... Do you know how fast you are pushing the 208? Also, H110 is a pretty slow burning powder for a bolt gun. [Linked Image] Custom and Precision ...Discover the best 300 Blackout powders for precision and power. Explore top-rated powders like CFE BLK, Alliant Powder, Hodgdon H110, and...Jul 19, 2022 · The .300 BLK has easily been the most successful new caliber in the last 20 years. Besides the easy conversion between 5.56 and .300 BLK, the .300 BLK does a lot the 5.56 can’t. First off, it’s a very versatile load with projectiles weights ranging from 110 grains to 220 grains. (L to R) 5.56 NATO, .300 BLK, .30 Carbine. I just got a 300 blackout with a can and i reload, was wondering if any of you guys know a good quiet powder for the 300 blackout shooting 220 grain round nose? was going to try vihtavuori 340, but its a pistol powder, its also the quietest powder suppressed for my 9mm. Any input would be greatly appreciated. Thanks.Similac powder is a popular choice for parents looking to provide their infants with essential nutrients. This formula is carefully designed to mimic the composition of breast milk...270 Winchester Short Magnum. 28 Nosler. 280 Ackley Improved. 280 Remington. 30 Nosler. 300 AAC Blackout. 300 H&H Magnum. 300 Remington SA Ultra Magnum. 300 Remington Ultra Magnum.Reloading 300 Blackout: Further Loki Testing. The Hornady 208-grain AMax and 9.4 grains of H110 was a tad too fast. The average velocity was 1,069 fps, but the load’s extreme spread of 96 fps put a few rounds above the sound barrier. The average group size measured 2.21 inches, with the smallest at 1.039 inch.The .300 AAC Blackout also burns powder faster than its .30 caliber siblings. You can also easily suppress a rifle that shoots this round to gain even more advantage. In terms of recoil, you’ll experience about 9 pounds to the shoulder. When it comes to penetration, this caliber performs well.I have H110, 2400, 3031, Unique and various other powders (but no others I think would be useful for .300 Blackout). 1. Fully cycles and operates the gun, including bolt hold open after firing last round. 2. No excess pressure or excess wear on the brass case. 3.12 Jan 2023 ... I reload 300 Blackout with CFE BLK, reformed .223 brass, and 2 different bullets! Let's see how they shoot.The Barnes is made for the .300 Blackout and will expand reliably at those velocities. ... It is a pistol powder and behaves like a pistol powder (fast burning) I have pressure issues using it for faster supersonic rounds. I prefer the Lilgun for 125's and the aa1680 for 110's and the subsonic 220's.1-Cfe black with CCI 400,CCI 450 2-Accurate 5744 with CCI 400, CCI 41 3-Imr 4228 with CCI 450, Remington, 7 1/2 magnum primers 4- Hogdon lil gun with CCI 450, federal small rifle 5- n110 for lighter bullets n120 for high gr bullets with CCI 41, federal small rifle. I'm working up optimized loads for both subs and supers for a 16" bolt gun (1:7 ...Aug 18, 2020 · Posted by Alice Jones Webb on Aug 18th 2020. .300 AAC Blackout is hands-down, one of the coolest alternative AR-15 cartridges on the market today. This wicked cartridge is more than capable of dropping whitetails at 100 yards and ringing steel targets farther than that. And when you use subsonic ammo, the loudest sound you’ll hear is the ... 7 Jul 2016 ... AP2020 Merchandise https://ballisticink.com/collections/all/patriot-partner_ap2020-outdoors PLEASE SUPPORT AP2020 and Check out These ... The Bottom Line on 300 Blackout Ammo. The 300 Blackout is a rifle cartridge that’s more powerful than the 5.56 when fired out of a barrel that’s less than 16 inches long. The chief advantage of 300 Blackout is its versatility. You won’t find a cartridge that “does it all” better than the 300 Blackout. Printed from Shooter's Reference on 05/13/2024: https://www.shootersreference.com/reloadingdata/300-aac-blackout/1 Mar 2017 ... I have only worked with a couple bullets so far, but plan on trying quite a few, both powder coated and lubed. I know with jacketed bullets, the ...When it comes to blackout curtain liners, getting the right measurements is crucial for achieving optimal light-blocking and privacy. Whether you’re buying new liners or replacing ...Apr 13, 2017 · The 300 BLK shoots .308 caliber bullets. 3. Suppressor-Friendly: You can shoot heavier bullets subsonic. The subsonic capabilities of the 300 BLK make it ideal for use with a suppressed AR. 4. Great Barrel Life: With a .30-caliber bore and a modest powder charge, barrel life is outstanding. 5. Enables reloaders to duplicate certain factory loaded ammunition. Density designed for proper cartridge fit. Principal Purpose: Magnum Handgun/Pistol. Secondary Uses: .22 Hornet. Remarks: 150529 - 300-MP; 1 lb. bottle. 150530 - 300-MP; 8 lb. canister. Canister Sizes: View All 300-MP Recipes. Powdered sugar, also known as confectioners sugar, is gluten-free. The only ingredients in powdered sugar are cornstarch and sugar that has been finely ground. The ratio of cornsta...Our Ar15 "300 BLK MEGA THREAD" is an absolute train wreck of a disaster, trying to search through all those pages for just one particular topic is crazy. Zhukov (spelling) on here started a 300 blk recipe thread, but it always gets bumped off into the back of the bus, and it is for recipes only, no load workup or associated chatter. [ARCHIVED ...Great groups after you find your specific load. I run Howa 300 blk. 11.4 gr of CFEBLK and OAL of 2.145″ this gives a .75″ group @ 75 yds 8 shots. For accuracy be sure to weigh each bullet to get the same weight and leave very little air gap for CFE powder. This is not a compressed load. Deadly headshot kills for on hogs!! easy firearm cleaning.It provides full function in modern sporting rifles throughout a range of bullet weights and is perfect for subsonic loads. In addition to being outstanding in the 300 Blackout, it performs well in many smaller capacity cartridges such as the 17 Hornet, 17 Ackley Hornet, 218 Bee, 221 Fireball and many more.Jul 17, 2020 · Cor-Bon subsonic data is: .300 Blackout 240 grain; muzzle velocity 1000 FPS, muzzle energy 533 ft-lbs. That is more muzzle energy than a 230-grain .45 ACP load yet includes the ability to fire more accurately and at greater distance while utilizing the same 30-round magazines you already have. Data like Hodgdon, is problematic because the “subsonic data” is not related to pressure, Max load is capped at 1050 fps. Most 300 Blackout data is geared toward AR’s and powder that will cycle the action. This leaves about 20 good powders used in something hand fed off the table. Look for 300 whisper data.Here’s a short list if you don’t have time to read this wonderfully written article. Best Barrel Length Overall – 9 Inches. Best Barrel Length For Hunting – 16 Inch Barrel. Best Barrel Length For Subsonic – 7 Inches. Best Barrel Length For .300 Blackout Pistol s – 6 Inches. The 9 and 6-inch barrel lengths are what I recommended for ...3 Jan 2016 ... Loading 300 Blackout - ep 12 - More subsonic tests with IMR-4198, Reloder 7, and Norma 200.16 Jun 2023 ... 5 Best 300 Blackout Powders · Best Overall: Hodgdon CFE BLK Smokeless Gunpowder · Best on a Budget: Hodgdon H110 Powder · Best for Legacy ...Jun 18, 2013 · I'm running Hornady 150gn FMJBTs and 150gn soft point core loks over 15.0gn of H110 with an average velocity of 1,855. I'm shooting a Remington 700 AAC-SD in .300 Blackout with a 16" barrel. The loads were producing a 2.2" group at 300 meters. If you want more velocity/expansion I'd go with a 110 or 125 pill. Cntrl23. 148 posts · Joined 2018. #17 · Apr 12, 2019. The quietest I’ve shot has been the 220gr Freedom Munitions HUSH 300 blackout. Luckily, they had it at Gander Outdoors last summer for about $45 a box on the shelf during a sale. It’s $59.84 for 50 rounds from Freedom Munitions. Alliant Powder 300-MP. Alliant Powder Reloder 10x. Alliant Powder Reloder 7. Hodgdon CFE BLK. ... Powder: BLACKOUT (Shooters World) Primer: Small Rifle Case: JAG. Deteriorating smokeless powders produce an acidic odor and may produce a reddish brown fume. (Don’t confuse this with common solvent odors such as alcohol, ether and acetone.) Powder deterioration can be checked by opening the cap on the container and smelling the contents. Powder undergoing deterioration has an irritating acidic odor.I just got a 300 blackout with a can and i reload, was wondering if any of you guys know a good quiet powder for the 300 blackout shooting 220 grain round nose? was going to try vihtavuori 340, but its a pistol powder, its also the quietest powder suppressed for my 9mm. Any input would be greatly appreciated. Thanks.Shooters World 300 Blackout Rifle Powder 1lb. Product #: ZKD06302 UPC: 638037636734 Mfg Part #: D063-02. $37.99. $40.99. SAVE $3.00. or 4 interest ... The gas generation rate of this propellant also yields its use to .300 AAC Blackout, subsonic. A spherical propellant, it meters through charge plates consistently and will flow well in a …15 Feb 2021 ... Taking the #D Powder Funnel from our 38/357 caliber conversion kit, combining it with a neck expanding die, and reloading 300 Blackout ...Load Data for .300 AAC Blackout . Bullet: 125 gr BT (NOS) Diameter: 0.308" Powder: H110 (Hodgdon) Starting Powder: 15.7 gr. Max Powder: 18.5 gr . Primer: REM 7½ ... Hodgdon CFE BLK is a spherical powder that was originally developed for subsonic 300 Blackout loads. This excellent rifle propellant utilizes the Hodgdon CFE formula, Copper Fouling Eraser, virtually eliminating copper fouling, clean burning and minimal muzzle flash. For competitive shooters and hand loaders seeking the perfect powder for ... The new darling of 300 Blackout reloading. Still learning.... Speer 125gr TNT (Hollow Cavity in Tip with Striations designed to violently expand & fragment, lead core) Part #1986 (100 count) or #4725 (500 count "Value") Optimal price: $24/100 $95/500 Excellent go-to bullet for 300 Blackout..300 Whisper / .300 AAC Blackout / .300 Blackout (Using 110 GR Hornady Bullets) reloading data with 23 loads. Using bullets from Hornady V-Max, FMJ, RN or SP. Powders include Accurate, Alliant, Vihtavuori, Hodgdon, WinchesterWith the carbine gassed 300 BLK you are really limited as far as subsonic loading, but you should do OK with supers. The 4227 will do fine with the Lee AK 155 grain boolit. With the blackout and supers I just use starting jacketed data, and it usually is pretty close to accurate if I can get it to cycle. The .300 AAC Blackout (designated as the 300 BLK by the SAAMI [1] and 300 AAC Blackout by the C.I.P. [2] ), also known as 7.62×35mm, is an intermediate cartridge developed in the United States by Advanced Armament Corporation (AAC) for use in the M4 carbine. The cartridge yields increased performance in shorter barrels and effective subsonic ... DISCONTINUED .300 Blackout 195 Grain Round Nose Flat Point - Coated - 250ct. $37.00. Current Top Sellers. 1. DISCONTINUED .300 Blackout 195 Grain Round Nose Flat Point - Coated - 250ct. $37.00. New Products. DISCONTINUED .300 Blackout 195 Grain Round Nose Flat Point - Coated - 250ct.Aug 30, 2021 · Lil’ Gun was designed to fit, meter and perform flawlessly in the 410-bore. No more spilled shot or bulged cases. In addition, Lil’ Gun has many magnum pistol applications and is a superb choice for reloading the 22 Hornet. Made in the USA. Available in 1 lb., 4 lb. and 8 lb. containers. 15 Feb 2021 ... Taking the #D Powder Funnel from our 38/357 caliber conversion kit, combining it with a neck expanding die, and reloading 300 Blackout ...There's a narrow band of powders that work well with the .300 Blackout. If you're trying to create supersonic loads with long, 150-grain or heavier bullets, you'll find powder space is...If you do a rough comparison of muzzle energy of the 300 AAC Blackout to the 7.62×39 (AK-47) round, you’ll see a slight edge to the AK with a 100 grain bullet. The 110 grain Blackout at 2,375 feet per second yields 1,377.4 foot-pounds of muzzle energy to the AK’s 1,650.8 at 2,600 feet per second.
Discover the best 300 Blackout powders for precision and power. Explore top-rated powders like CFE BLK, Alliant Powder, Hodgdon H110, and.... Bene card
The best barrel length for a suppressed 300 Blackout is between 8 to 10 inches. At 10", the muzzle velocity hasn't reached its peak yet. Heavy subsonic 300 Blackout ammo in a 10" barrel may have lower velocities, but it allows for the use of a suppressor without damaging your hearing. Supersonic ammo out of a 10" barrel retains …300-MP 17.5 2075 19.5 2256 A-5744 17.6 1919 19.6 C 2117 H110 18.2 2213 20.2 2415 300 AAC Blackout uggested Bullet se Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. *Recommended Powder C Compressed Load 2 110-grain TAC-TX FB Sectional Density .166 Ballistic Coefficient .289 C.O.A.L 2.250” Powder Minimum …Check out the best powders for 300 Blackout ammo below. At a Glance: Our Top Picks for Powder For 300 Blackout. OUR TOP PICK: CFE BLK Smokeless Rifle Powder. RUNNER-UP: Alliant Powder - Power Pro 300-mp Powder. BEST BUDGET OPTION: Hodgdon H110 Powder. See moreFor that reason, the 110gr .300 Blackout and 7.62x39mm loads have a flatter trajectory and retain more energy than the .30-30 out past 200 yards. The 7.62×39 has a little more kinetic energy, but the .300 Blackout has a slightly flatter trajectory due to higher ballistic coefficient of the .300 Blackout bullets.Gun Talk’s Chris Cerino offers a thorough walkthrough and comparison of Hodgdon Powder’s offerings for reloading 300 BLK rounds. If you have any interest in...It’s an extremely capable bullet diameter, and its versatility really shines in the .300 Blackout. The Blackout has a 34.7mm case length, hence the “x35” in 7.62x35. This is shorter than the 5.56 NATO’s 45mm. Ten millimeters were lopped off the top of the 5.56 case to make room for the oversized .30-caliber slugs.Around 15 years ago, a co-worker suggested that I look into reloading as a hobby. I knew nothing about the topic at the time. He suggested going the buy once cry once route: spend lots of money up-front for decent equipment, and you won't have to worry about replacing it later. I ended up ordering a Dillon 550B.It wasn't cheap, but it's held up …May 20, 2020 · The subsonic 300 Blackout loads are often compared to 45 ACP, 10 mm or 9mm subsonic rounds. This showcases the dual purpose of the round. The advantage of 300 Blackout is if the shooter wants an AR-pattern rifle or pistol that is easily suppressed, they can use a common magazine and typically only need to swap an upper receiver. Some of my first 300BLK loads were 175s over red dot powder. Powder is too quick to cycle but very quiet. My subsonic .300 blackout vs friends .308 subsonic. Yes. I run VVN105 with 208Amax, SMK 210 & 220. All run in the 1080fps range with a 7.5" tube. 90% of what you hear is the action cycle.Alum powder is not available at Walgreens, according to its website, as of 2015. Alum powder is not an available product online nor in-store at Walgreens. Alum powder is available ...The 300 BLK shoots .308 caliber bullets. 3. Suppressor-Friendly: You can shoot heavier bullets subsonic. The subsonic capabilities of the 300 BLK make it ideal for use with a suppressed AR. 4. Great Barrel Life: With a .30-caliber bore and a modest powder charge, barrel life is outstanding. 5. Write a review. $47.99. SKU: 4781658. Designed specifically for .300 AAC Blackout cartridges, Hodgdon® CFE BLK Smokeless Reloading Powder pours easily for accurate measurements, and contains a proprietary Copper Fouling Eraser... Reply reply. T800_123. •. A lot of people are going to say CFE BLK and 1680. They work great, but in my experience as well as a lot of people over at 300blktalk they're both noticeably louder when running suppressed subs then other powders. IMR 4227 is my personal favorite, I achieved some pretty good consistent loads and it also is the ...Hodgdon CFE BLK is a spherical powder that was originally developed for subsonic 300 Blackout loads. This excellent rifle propellant utilizes the Hodgdon CFE formula, Copper Fouling Eraser, virtually eliminating copper fouling, clean burning and minimal muzzle flash. For competitive shooters and hand loaders seeking the perfect powder for ...There are so many different powders and bullets for .300 blk. A adjustable gas block can make lighter bullets still function the action. I shoot 147 M80 bullets for cheap plinker subsonics. Jhonnys reloading bench has some great videos of load development for a wide range of bullets and powders..