If you wish to run the 235gr Lee supersonic it will be fine but subsonic you should choose a different powder. Pistol ammo loads with H110 call for magnum primers. An innovative way to carry your backup gun. Seeing the economic potential of the fast-growing firearms industry, Winchester began to assemble investors and secure venture capital, and in 1857 bought a controlling interest in the Volcanic Repeating Arms Company from two inventive gentlemen named Horace Smith and Daniel B. Wesson. I worked up a load and settled at 9.8gr of 296 which turns out to be an exact load listed by Winchester on their load data website. The 300 AAC Blackout Loading Data wasn't listed in the 2016 version because we hadn't received load data for that caliber at the time of the printing. Winchester - Legendary Powders Old Craftsman 6-inch dial calipers passed on the author by his machinist father alongside a Wilson .300 Blackout case gauge. Converting an AR-15 to fire 300 Blackout is as simple as swapping its barrel. The load data provided by Accurate Powders suggests a 16 barrel with 1:10 twist rate, Remington cases trimmed to 1.358, and Winchester Small Rifle primers. This one seems to reign as a favorite, but it isnt cheap. Amp up your AK with these exciting accessories. The twist rate needed to accommodate the heavy subsonic bullets makes finding accurate super sonic loads difficult. These seemingly small differences are significant. A critical marksmanship skill that is easy to overlook. .300 AAC Blackout - Manufacturer Loading Data Shellholder: Hornady #16 Lee #4 Lyman #26 RCBS #10 Pistol Rifle Cowboy Starting Max Source 100 gr HPCE / OTCE (Lapua) 0.308" Powder: N105 (VihtaVuori) Primer: Small Rifle Case: Lapua Trim Length: 1.362" C.O.L. H 4831, 220 gr RN Fed 205 heavy factory crimp, 1050 fps cycles my 16 M4. If you folks want really figures use quick loadthis data and noslers data is bogus. Accuracy was less than an inch with three shots. powder coated cast bullet made with NOE bullet mold TL310-225-RN, lead hardness at 24bhn, sized to 0.310". The 300 Blackouts recoil is not significantly different from the 5.5645, and its price isnt prohibitively higher. Loading 300 Blackout - ep 10 - First subsonic test loads with Palmetto Projectiles Function and velocity testing with Winchester 296 1 pound. by bangbangping Sat Dec 14, 2013 4:30 pm, Post The design of the cartridge itself is a bit of an issue as well. A Nosler 125 gr. For lightweight supersonic loads IMR 4227, Hodgdon CFE Black, Hodgdon H110, Winchester 296 and Alliant 2400 are good options. x}% 9 V/@]Jz$Y-l7 m1#`2A2*tTfn2+O~W|S/_^Se=~oL/Ooh}k4m{zc{>{!w-77cz-Nnxo#j~_~t{pt/c|~z'Gc;2`gk)i,0 1cOh||z>3z L`];H\Gwyb^z-_.oWlw}E> IMR 4227, W-296, H-110, or Lil'Gun instead of rifle powders like I expected. Powders that clearly work and have been tested thoroughly be AAC. Most of the reloading manuals show lower data, I suspect this is related to the wide variety of ways to form brass for the cartridge and how that may cause an increase in pressures. The cleaner your brass is, the longer your dies will last, especially if that brass has been in the dirt at all. I plan on doing more work with it and reporting back in the future. LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED. 296 has kept .410 in the hands of American youth- teaching them to shoot for generations. or 5.56 NATO chamber. This I usually get from GI Brass Locker, though there are other sources out there.Primers will be whatever is prescribed in the load data that you obtain. Has N120 been discontinued? Be sure to store them away from anyone you think may try to use them in place of a crescent wrench. For reloading information:WARNING: The loads shown are for informational purposes only. 300 BLK Load Data warriorsociologist, I don't currently have any 147s on hand. This is the best group achieved with the 300 BLK and 135 SMK at 100 yards. Be the first to share your insights. Although they share .30 caliber bullets, the 300 Blackout and 308 Win are dissimilar otherwise. These guns have had mixed success. He is a greedy old has been who would have let this cartridge perish. 7.3 grains of trail boss seems high even for max charge. After testing with a number of projectile weights it seemed a waste of time to try another powder as it was obvious the combination shot better than I could! The case dimensions are very similar to .223 Remington and 5.56mm NATO, with virtually identical cartridge overall length (COL) and base diameter, allowing a shooter to load .300 Blackout cartridges in an unmodified AR-15 magazine without loss of capacity. The 300 bulk is an underpowered cartridge-on par with theM1 carbine of WWII- but not as easy to wield. To reload your own .300 Blackout, there are some must-have tools needed to make high-quality handloads.Before you embark on this, assuming you havent already, you should probably find a reloading manual and get familiar with the process of reloading your own ammunition as well as finding the load data youre going to need. . They instead heavily based their new cartridge on SSK Industries 300 Whisper. Your email address will not be published. Whether you are reloading to save money or to create the perfect load for hunting, self-defense, or suppressed use, there is load data and a suitable propellant for you. There is not much load data for this powder so I had to work up my own. No reviews found. Wolf Small Rifle Magnum primers. Have experienced some unstability problems with cans and 1:8 barrels with 220 gr sierras. If you arent worried about being on the cutting edge of accuracy, the fast twist needed to stabilize the heavier bullets, means you are spinning the lighter loads way too fast. Winchester continued to refine firearm designs with inventors Benjamin Tyler Henry and Nelson King, and on May 22,1866 the Winchester Repeating Arms Company was born. Sierra 180Grain match king projo, 12.2 grains of powder. Both loads are with a 225gr. Does Lee offer a Powder Thru Expanding Die for the 300 AAC Blackout. As far as twist rate is concerned,I wanted the flexibility of being able to shoot the light and heavy rounds, so I ordered a custom barrel from Bartlein with a 1:7 twist. I generally use a balance-beam version, as its less expensive, but if youre inclined to spend more money, you can opt for a digital. Silhouette shooters claim it is the most accurate 44 powder they have ever used. Besides the cost-saving advantages, handloading is also a way to tune your ammunition to your .300 Blackout rifles so that it performs with the best accuracy and reliability possible. Serving as optimal powders for their intended cartridges. The 2017 printing is identified by the gold star on the front cover that states "Revised 2017 New Powders over 37,000 loads". Winchester 296 is a ball powder developed for large handgun loads. SD ----- 62 fps Both the 110 gr. It provides similar effectiveness to the 7.6239 or the slightly more powerful 30-30 cartridges except works in the more up-to-date AR15 platform. Groups were 5 shots (unless otherwise indicated) at 100 yards. 300 Blackout 125 GR NOS BT Hodgdon Trail Boss .308" 2.060" 300 Blackout 135 GR SIE VAR HP Hodgdon Trail Boss .308" 2.055" . .300 Whisper / .300 AAC Blackout / .300 Blackout - Load Data Ballistically speaking, the 7.62x39 mm (center) is similar to the .300 Blackout (l.) and .30-30 Win. Hodgdon produced the load data below using a 16 barrel with a 1:8 twist rate, Hornady cases with a trim length of 1.363, and Remington 7 1/2 Small Rifle Magnum primers. Thats a lot of work already done that I only need to tweak for my rifle, however when I chrono these loads Sierra is pretty much dead on! 300 AAC Blackout is also finding use with hunters, who may not have been able to legally hunt with .223 in their state, and who prefer .30 caliber bullets for medium-sized game. A look at 300 Blackout ballistics including velocity, energy and drop data for some of the most popular loads among American shooters. Case capacity is critical with .300 Blackout. On the up side, firing the 300 BLK from a precision rifle is a pleasure. It is also suitable for .221 Fireball, 6.8mm SPC, and 7.62x39mm if you happen to reload for these cartridges as well. The velocities cited for the BLK are asthmatic. subsonic 300blk. However, it is listed in the 2017 and later printings. An ideal solution for loading 357 Magnum, 44 Magnum, and even 410-bore shotshell ammunition, its high loading density provides optimal velocity. I use it for my 220gr subsonic 300 blk loads. As with IMR 4227, Hodgdon obtained the following load data using a 16 barrel with a 1:8 twist rate, Hornady cases trimmed to 1.363, and Remington 7 1/2 Small Rifle Magnum primers. APP Automatic Processing Press 90951 90933, http://leeprecision.com/300aac-blackout-c-tb.html. The D&H Tactical magazine on the right shows no such issue with the 180-grain Rainier Ballistics FP, due to having shallower front ribs in the magazine. For this, you will need a powder scale. Intended primarily for high case capacity, high-power cartridges such as .454 Casull, .475 Linebaugh, and .500 S&W Magnum, it has also been used successfully for decades in certain rifle calibers, such as 7.62x39mm and .300 Blackout. When starting a new load, always begin with the starting load data written in a recent handloading guide, or 15% under a listed maximum load if there is no starting load data provided. IMR 4227 is suitable for supersonic and subsonic loads. W296 is more than similar, it IS H110. For specific loads, there is also information available on Hodgdon Powders website.One thing you may want to decide before reloading .300 Blackout is whether you want to load subsonic ammunition, supersonic ammunition or both. My preference is the dial version, as they dont require batteries and also probably because Ive been using them on and off for most of my adult life. The typical range of bullet weights runs from about 110 grains all the way to 240 grains.For brass, you have some options. Hodgdon H110 is identical to Winchester 296; it is simply sold under a different label. In contrast, a 220-grain bullet ideal for subsonic loads, like Sierra MatchKing 2240, possesses an overall length of roughly 1.49. Carbine length gas tube. : 26,000 34,800 CUP Hodgdon 85 gr RN (Sierra) 0.308" Powder: H4227 (Hodgdon) Find load data for Shooters World Blackout propellant by clicking the button "Loads for this Powder".More about this powder:ShootersWorld: Ballistic results for this propellant show it appropriate for both pistol and rifle cartridges that incorporate a near straight-walled cartridge case. There are offerings from Sierra with one of the notables being their 220-grain MatchKing. The 300 AAC Blackout (300 BLK, or 7.62x35mm) was created by Advanced Armament Corp. and Remington in order to provide the military with a way to shoot .30 caliber bullets from the M4 platform with only a barrel change. Thats a 16: bbl. It is a classic reloading powder that should be on the shelves of any handloading enthusiast. We are currently populating the cartridge drop-down menu with updated cartridge renderings, new propellants and bullets, and links to complimentary product pages.