I was leaning towards a Marlin 1894 for the cycling speed, but I don't know if they thread well.
#SUBSONIC SPEED FPS FOR 300 BLACKOUT MOVIE#
My favorite is my T/C, it's movie quiet, accurate, has almost no recoil and I can use any cartridge OAL I want to.
The Ruger is great but its magazine OAL limitation keeps you from using the longer heavyweight bullets. 2 ), also known as 7.
#SUBSONIC SPEED FPS FOR 300 BLACKOUT FULL#
These barrel lengths were what SiCo, recommended for using their Octane 45 suppressor with normal, factory loaded full power 44 magnum rounds so they also work just fine for the lower power subsonic rounds. 300 AAC Blackout (designated as the 300 BLK by the SAAMI 1 and 300 AAC Blackout by the C.I.P. I've got a T/C Encore with 18" barrel and a Ruger 77/44 with an 18" barrel. I still had the hornady black so I used that as a baseline for speed testing. In only 4' of barrel though its already going 950 fps, thats 76 of its total end velocity in only the first 1/4 of the barrels length. In 16' of barrel its topping out at 1250 fps. Fast forward a few weeks and I have a 5x5 load test for hornady 208 and 220 gr BTHPs using Accurate 1680 powder. In this graph its a heavy SUBsonic in quickload I plucked off the net. 44mags out there, and I think that's exactly what I'd like to do. Hornady black and the remington 220gr OTM subsonic both failed to lock on an empty mag. There doesn't seem to be an abundance of suppressed. The 44 mag loaded with a 320gr LSWC at 1050fps will put a hurting on anything you want at close range and with my Octane 45 they are movie quiet. A supersonic 300 Blackout round with a 110 grain bullet has a muzzle velocity approximately 1,000 fps slower than that of a 223 Rem, giving it a significantly faster bullet drop. I don't have the 300 but I do have a couple of 44 Mag rifles I suppress. 44 mag probably would edge out the 300blk because of the heavier bullets however you would also loose velocity quicker and have more drop at distance so at some point the effectiveness of the bullet at an intersecting velocity would trump.Įither way, having first hand knowledge of the effect of a correctly designed 300 blk subsonic bullet, I will stick with 300 blk 44 mag fmj or even a flat point cast, then 300blk wins.Ĭomparing the 2 with proper bullets then.
44 mag wins, if you compare a correctly constructed 300blk subsonic bullet against a. 44 mag bullet of correct construction to expand at subsonic velocities against a 220smk, then. I have never actually tested this myself, but am just making an educated guess.Ĭorrect I should have been more specific. 44 mag loads they are supersonic at the muzzle I grant you, but I still think they would be effective and have a good chance of expanding at lets say 1000 fps. 44 mag bullet is designed to be effective at pistol velocities. To be subsonic, muzzle velocity limit is just over 1000 feet per second (fps). What about bullet make up? that makes a huge difference in effective subsonic use.įMJ, or Soft point will be almost useless in either caliber at subsonic velocities. These each also show the two essential approaches to subsonic blackout.
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