Archived Posts » 59,646,491
40mm XM576E1 round 'cut-a-way'
9/21/2009 8:19:48 AM
9/21/2009 9:02:53 AM
I'm disappointed, I expected there to be a good bit more shot in there.
9/21/2009 9:21:30 AM
Less than 30 pellets? What's the muzzle velocity?
9/21/2009 9:29:06 AM
Originally Posted By mcooper:
Less than 30 pellets? What's the muzzle velocity?
Less than 30 pellets? What's the muzzle velocity?
20 pellets of #4 buckshot - roughly 880 fps.
9/21/2009 10:00:39 AM
That's pretty rad.
9/21/2009 8:25:46 PM
It's a good way to find out if someone that claims to know about 40mm munitions, really knows what they are talking about. Many uneducated people think there are a couple hundred pellets in those rounds... 
I had to contact the owner of a munitions website and correct him in this respect. GROG
I had to contact the owner of a munitions website and correct him in this respect. GROG9/21/2009 9:04:59 PM
Regular 12ga has 27 or so pellets of #4 buck. This round seems less than useful.
9/21/2009 10:02:27 PM
Originally Posted By jestertoo:
Regular 12ga has 27 or so pellets of #4 buck. This round seems less than useful.
Regular 12ga has 27 or so pellets of #4 buck. This round seems less than useful.
That's what I'm thinking.
9/21/2009 10:08:59 PM
Originally Posted By mcooper:
That's what I'm thinking.
Originally Posted By jestertoo:
Regular 12ga has 27 or so pellets of #4 buck. This round seems less than useful.
Regular 12ga has 27 or so pellets of #4 buck. This round seems less than useful.
That's what I'm thinking.
Well, did they have any 12 gauge 40mm adapters back then?
9/21/2009 11:50:33 PM
Pretty sure it would be easier to make 40/12ga adapters than 40mm buckshot rounds... I mean the adapter is just a piece of barstock with a flange and ~0.8" hole down the middle....
9/22/2009 8:23:17 AM
Originally Posted By Shizzlemah:
Pretty sure it would be easier to make 40/12ga adapters than 40mm buckshot rounds... I mean the adapter is just a piece of barstock with a flange and ~0.8" hole down the middle....
Pretty sure it would be easier to make 40/12ga adapters than 40mm buckshot rounds... I mean the adapter is just a piece of barstock with a flange and ~0.8" hole down the middle....
I think these rounds were developed in the '60's weren't they? Before the advent of 12 gauge adapters?
9/22/2009 8:26:30 AM
Originally Posted By apricotshot:
I think these rounds were developed in the '60's weren't they? Before the advent of 12 gauge adapters?
I think these rounds were developed in the '60's weren't they? Before the advent of 12 gauge adapters?
Yes.
9/22/2009 10:59:51 AM
I just want to get my hands on a few rounds of EBR #4 shot canisters.
9/22/2009 11:05:21 AM
Originally Posted By apricotshot:
I just want to get my hands on a few rounds of EBR #4 shot canisters.
I just want to get my hands on a few rounds of EBR #4 shot canisters.
$125ea. + tax, tag and, title.....
9/22/2009 11:19:12 AM
Originally Posted By osprey21:
$125ea. + tax, tag and, title.....
Originally Posted By apricotshot:
I just want to get my hands on a few rounds of EBR #4 shot canisters.
I just want to get my hands on a few rounds of EBR #4 shot canisters.
$125ea. + tax, tag and, title.....
Are they really? Of course all of EBR's stuff is $$$. Where can one aquire some? Every dealer I see that advertises them says mil/leo only.
9/22/2009 11:59:12 AM
Originally Posted By osprey21:
$125ea. + tax, tag and, title.....
Originally Posted By apricotshot:
I just want to get my hands on a few rounds of EBR #4 shot canisters.
I just want to get my hands on a few rounds of EBR #4 shot canisters.
$125ea. + tax, tag and, title.....
40mm shot canister wouldn't be a DD in it's own right.
Who is EBR?
J
9/22/2009 12:03:41 PM
Originally Posted By jestertoo:
40mm shot canister wouldn't be a DD in it's own right.
Who is EBR?
J
Originally Posted By osprey21:
$125ea. + tax, tag and, title.....
Originally Posted By apricotshot:
I just want to get my hands on a few rounds of EBR #4 shot canisters.
I just want to get my hands on a few rounds of EBR #4 shot canisters.
$125ea. + tax, tag and, title.....
40mm shot canister wouldn't be a DD in it's own right.
Who is EBR?
J
Engell Ballistic Research: EBR
9/22/2009 12:08:07 PM
Now that I take a look at the EBR site again I see that he sells "bodies only" in two finishes. I wonder how hard it would be to "roll" your own?
9/22/2009 9:00:59 PM
Get a 40mm to 12 ga adapter from Destiny or one of the others making them and put a 3.5" 12 ga #4 buck 54 pellet load in it and you have the same thing.
9/23/2009 12:01:00 PM
The trouble with the 12ga adaptors is, as Aberdeen and Picatinny figured out back in the 1960s, they don't work very well. The adapter has the effective barrel built into it, the barrel length of the launcher (M203, 203A1, M79) doesn't affect the muzzle velocity of the shot column at all.
It also doesn't allow the powder to burn very well, or propel the shot column for very long. Then there's the problem of case head thrust from the 12 gauge round, simply put, they beat the hell out of the launcher.
It also doesn't allow the powder to burn very well, or propel the shot column for very long. Then there's the problem of case head thrust from the 12 gauge round, simply put, they beat the hell out of the launcher.
9/23/2009 1:12:58 PM
That's my concern. I don't want my launcher taking an unnecessary beating. So ideally I could my hands on some of EBR's goodness.
9/25/2009 8:09:04 PM
I have adapters of every gauge, from 410 to 10 gauge. They all work, however the 410 is my favorite for the reason posted above. It does not "beat the hell" out of my launcher, or my shoulder. I have a couple 40mm to 12ga that I fire infrequently, and the 40mm to 10ga I fired once. (That was all I needed to fire it, to not need to fire it again unless an emergency exists...)
The problem with the 576 buckshot, or any other 40mm round that propels buckshot, is the mass of the shot together is hard to propel with sufficient velocity for the range. Basically... If you want a 12ga shotgun... buy a 12ga shotgun. As in the video on the EBR site; unless you are engaging a target within 10 yards, forget it. The 40mm is not designed to propel lead shot like a shotgun is. Even WITH a 12ga, the effective range of a OO buck is only 15-20 yards. (870 with standard police barrel) After that, the pattern spreads to over target width.
Same with flechettes. They, like buckshot, are wicked, but unless you can get them propelled with the velocity needed to throw them out there... They are ineffective. The only flechette rounds I know are effective are the 105mm Howitzer rounds that use explosive on impact to dispurse them. Nice in theory, but don't work well in 40mm.
The problem with the 576 buckshot, or any other 40mm round that propels buckshot, is the mass of the shot together is hard to propel with sufficient velocity for the range. Basically... If you want a 12ga shotgun... buy a 12ga shotgun. As in the video on the EBR site; unless you are engaging a target within 10 yards, forget it. The 40mm is not designed to propel lead shot like a shotgun is. Even WITH a 12ga, the effective range of a OO buck is only 15-20 yards. (870 with standard police barrel) After that, the pattern spreads to over target width.
Same with flechettes. They, like buckshot, are wicked, but unless you can get them propelled with the velocity needed to throw them out there... They are ineffective. The only flechette rounds I know are effective are the 105mm Howitzer rounds that use explosive on impact to dispurse them. Nice in theory, but don't work well in 40mm.
