Rating: 100%. Out of stock. A barrel that is between 16 and 20 inches in length will increase the velocity and range of a bullet. Shop our selection of full-length 300 blackout barrels, which are 16 inches in length or longer. Out of stock. $145.00. The attraction of having a rifle the same length as a 16" Carbine that was supressed was simply too great. New. ... fired from the 16-inch barrel rifle, it developed a velocity of 1,915 feet per second. This length, coupled with a 1:8 rifling twist, provides the best 300 Blackout barrel … I also used a 16-inch-barreled Daniel Defense 300 BLK rifle for velocity comparison in some cases. 300 HAM’R rifle and pistol barrels are available in 8″, 11.3″, 14.7″, 16… Out of stock. Winchester quotes muzzle velocity (MV) values for its .350 Legend loads from both 16 inch and 20 inch rifle barrels. Ballistic Advantage 300 Blackout Modern Series 16 DRP $ 180.00 Read more. My 9" .300 will throw 110gr right at 2200fps, so you'd probably be in the same area as .30 carbine with a 7.5" barrel. While this is not a pistol, we used a pistol length gas system to provide sufficient gas and ensure reliable subsonic operation. Sale Price: $171.00 . Quick summary of my velocity data comparing the 16-inch Ballistic Advantage barrel to the 9-inch AAC barrel My reloads: Barry 220 gr (10.1 gr IMR 4227) 1040/983.8 fps Maker 200 gr (10.2 gr A-1680) 999.6/907.8 fps Maker 220 gr( 10.4 gr A-1680) 1066/977.2 fps Factory: Rem L300AAC4 220 gr 1144/1057 fps Hornady Sub-X 190 gr 1117/1056 fps 8 Reviews. Add to Cart. Ballistic Advantage AR-15 16" 300 BLK 1:7 Barrel Pistol-Length 4150 This item is currently on order MSRP: $180.00 . 9" gets you 94%. $115.00. I went with a 8 inch for my 300. Having said that, 7.5" is short even for .300. KAK VALUE LINE 300 BLACKOUT 4.75 INCH MELONITE BARREL . If you like long-range shooting, a longer barrel is helpful. Out of stock. lbs.) Rating: 0%. JoeBob dun saved you $9.00! Here are the velocity in feet-per-second (fps) and energy in foot-pounds (ft. When pushing the round out to 300 yards or so a 16-inch barrel will be in order. KAK 16 INCH 300 BLK CARBINE MELONITE BARREL . The 300 HAM’R has a 300 FPS velocity and 400 FP energy advantage over the 300 BLACKOUT at the muzzle. .300 Blackout 240 grain; muzzle velocity 1000 FPS, muzzle energy 533 ft-lbs. CMMG 16" 300 Blackout Barrel Multi-Role - 300 BLK MSRP $179.95 . Buffer and … New. An 8" gets you 90% of the energy of a 16" 556. Ballistic Advantage 6.5 Creedmoor Premium Series 24 Heavy Barrel $ 335.00 Read more. The new Barnes black tip expands to 375 yds from an 8" barrel. SALE PRICE: $149.95 (Out of Stock) (5) CMMG 16" 300 Blackout Barrel Medium Taper - 300 BLK MSRP $179.95 . Long 300 Blackout Barrels. That being said, if long-range application of the weapon is to be the goal, neither of these barrels will suffice. The 16 inch barrel data are used here, for all cartridges, because 16 inches is the most prevalent barrel length for AR-15 rifles. Add to Wish List Add to Compare. ... For our project, we are building a 16-inch barrel .300 BLK carbine. .300 BLK suffers a lot less velocity loss in short barrels than 5.56. Ballistic Advantage 300 Blackout Modern Series 8 DRP Barrel $ 155.00 Read more.