300 ACC Blackout
what is this caliber for????
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Mall Ninjas and other folks who don't understand physics.
Really, it's a trendy "you really gotta have this" caliber for wannabe operators. Yep, it's quiet, but so is a 45. But 45 doesn't cost 80 cents a round.0 -
J.D. Jones first developed it as the 300 Whisper back in the 90's. It was specifically made to be used on a AR platform, firing a 240 grain suppressed bullet, at 1000 FPS. Later loads were developed using heavier lighter bullets with velocities similar to the 7.62 X 39.
Because Jones refused to license the cartridge to other manufacturers. The 300 Blackout was brought out by AAC and Remington to utilize the cartridge. My understanding is that the 300 Whisper and 300 Blackout are almost identical except for bullet weight.0 -
What rufe said except the .300 Whisper and AAC Blackout have some very minor differences in the chambers. It's not just the bullet weight. The .300 AAC will safely accept .300 Whisper cartridges. Not sure, but I think it's true the other way around as well. The big thing to watch for is bullet weight (in reality length) as the very heavy for caliber 240 gr. Spitzer takes a 1-9" twist to adequately stabilize out to intended ranges.
That said, the concept was to use a super high BC bullet at subsonic speeds to get less drop and drift when shooting moderate ranges at nearly completely silenced levels. Meaning a 240 gr. SMK will drop less and drift less in the wind than a 250 gr. .45 slug when each of them are fired from a suppressed barrel. IMO, this is the only reason to get this round. That is if you intended to fire suppressed out to 500m. That way the zombies won't know where you are, but you can pick them off all night long.[;)][:D]0 -
I find these cartridges interesting because they are the most powerful commercially available .30 cal rounds one could hunter deer with using a handgun in Illinois.
Other than that, it is amusing to read about them in the gun magazine where the writers talk about it like it is practically a 30'06 when in reality it isn't even as powerful as a 7.62 X 39.
I realize the Remington has gotta sell stuff, but it is funny when the same people who routinely badmouth the 7.62 X 39 fall all over them selves talking about how great the .300 ACC is.0 -
Creative writing 101. Had a customer years ago that wanted one to use for turkey and small game hunting using cast bullets. Never got back to me so I don''t know haw that worked out. 0 -
Another useless cartridge for a condition that doesn't exist. 0 -
Lots of people have suppressors these days. It's a round for suppressed ARs.
I am sure it's plenty quiet even without a suppressor, since its twist rate is adequate to shoot a 240 grain bullet so you can have a lot of punch while maintaining subsonic velocity.0 -
An arbitrary 1000 ftlbs is considered minimum energy today for taking of deer sized animals. In a supressed gun you'd need about a 400 grain bullet to get to that energy level.
A 220 grain 30 Whisper bullet starts out at pistol velocities with 500-600 ft lbs of muzzle energy. Having better ballistic coefficients than pistol bullets it will better retain its' energy but following a rainbow trajectory.
Whisper has a line of different calibers. I believe one needs to go up in caliber to be effective using supressed equipment beyond 100 yards.
A well designed 400-450 grain 45-70 bullet can been effective at long range starting out at 1100 fps.0 -
quote:Originally posted by v35
An arbitrary 1000 ftlbs is considered minimum energy today for taking of deer sized animals. In a supressed gun you'd need about a 400 grain bullet to get to that energy level.
A 220 grain 30 Whisper bullet starts out at pistol velocities with 500-600 ft lbs of muzzle energy. Having better ballistic coefficients than pistol bullets it will better retain its' energy but following a rainbow trajectory.
Whisper has a line of different calibers. I believe one needs to go up in caliber to be effective using supressed equipment beyond 100 yards.
A well designed 400-450 grain 45-70 bullet can been effective at long range starting out at 1100 fps.
My understanding with the original 240 grain Whisper bullets. It took a very fast twist to stabilize them. When they hit something they tended to keyhole very abruptly. This made them much more lethal then a .45 caliber bullet of the same weight, at the same velocity. The new ACC/Remington cartridge uses a 30 grain lighter bullet, I don't know if it would be as unstable as the original Whisper bullet?0 -
Just get a .458 SOCOM [:D]. Basically starts taking off where the .300 tapers off. 0
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