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Anonymous
Frangible ammo - 30 cal military - any milfags around? 2016-08-12 20:03:06 Post No.
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Frangible ammo - 30 cal military - any milfags around? 2016-08-12 20:03:06 Post No.
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Frangible ammo - 30 cal military - any milfags around?
Anonymous
2016-08-12 20:03:06
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hi /k/, I'm posting this in the off chance that some ammo specialist or small arms repair specialist here knows about this stuff.
Here we go:
This particular frangible practice ammunition (white / green tip) is used for machine gun practice. These bullets are said to be made from compressed lead and a bakelite - type resin.
I have load data for 1/4 powder load that should work correctly for this projectile, and i am interested in making some plinky/training loads with this stuff; but my question is, do these projectiles cause any undue wear on a barrel? Did you guys have to swap out barrels more frequently when using the practice ammo in the M60/M219/what have you?
These appear to be quite different than the "green" frangible shit that is being used for lead-free handgun ammo and so on. Their function is to disintegrate on impact.
Another concern of mine is lead/resin dust causing issues in the firearm and in my lungs, but that's another issue.
Thanks /k/bros
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>>30959360
Probably leaves more gunk in your barrel.
Aside from that, it's really light. So probably not very stable in flight.
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bumop
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>>30959360
im guessing they're the kind meant to make boom and then the actual bullet gets destroyed by a steel clump at the end? In which case no, don't do that.
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>>30959360
No, they don't produce any significant wear on the barrel. They can require more frequent cleaning though.
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>>30961076
do you have experience with these particular bullets? The composition and compressed material varies with frangibles.
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>>30961988
Depends how you want to define it. I'm a metallurgist and when I'm bored and have free time I play around with stuff like this at work. So no, I've not done extensive shooting of these or any other frangible ammo, but done enough micros and Vickers testing to know they aren't going to hurt your barrel.
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>>30959360
eww
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>>30964594
this
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>>30959360
Per TM 47-0001-27 Small Arms Ammunition Data Sheets 30 Caliber Ball M22 Frangible was loaded with 11 grains of SR 4759 powder, which is till available from IMR.
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>>30965721
Also it gives the cartridge overall length as 3.29 inches and a stated velocity of 1320fps 53 feet from the muzzle, hope this helps.
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>>30961988
These are made for a mixture of bakelite and powdered lead.
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