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differences in military brass

This is a discussion on differences in military brass within the Ammunition forums, part of the M14 M1A Forum category; i have some brass (7.62X51). Lake City 64, L.C. 63, L.C. Match 65, L.C. 91 Match, L.C. 93 Match & L.C. LR 02. i don't ...


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Old February 22nd, 2008, 11:01 PM   #1
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differences in military brass

i have some brass (7.62X51).
Lake City 64, L.C. 63, L.C. Match 65, L.C. 91 Match, L.C. 93 Match & L.C. LR 02.
i don't have enough of anyone kind to make any kind of a run.
i weighted 5 cases of each of the different brasses and averaged.
what i am finding is that the cases average wieght is only about 3 grains different between all of the different kinds.
is the weight of the cases indicative of the internal volume?
is there any difference in match brass and regular ball brass?

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Old February 23rd, 2008, 08:31 AM   #2
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Originally Posted by tony stark View Post
i have some brass (7.62X51).
Lake City 64, L.C. 63, L.C. Match 65, L.C. 91 Match, L.C. 93 Match & L.C. LR 02.
i don't have enough of anyone kind to make any kind of a run.
i weighted 5 cases of each of the different brasses and averaged.
what i am finding is that the cases average wieght is only about 3 grains different between all of the different kinds.
is the weight of the cases indicative of the internal volume?
is there any difference in match brass and regular ball brass?
Yes, there is a wide range in the weights in LC brass (both regular and Match). However, surprisingly, this translates into very little difference between the internal capacity between the the heavy and light cases. Not much difference between regular and match brass, other than the headstamp and the fact that the match brass doesn't have a primer crimp. The 65 Match would be M118 Match brass, the 91 and 93 Match is probably M852 Match brass (if it has a cannelure around the web), and the 02 LR is M118 LR brass (excellent brass and current sniper issue). Good brass, match prep em and use em.

Don

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Old February 23rd, 2008, 10:35 AM   #3
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Other than the headstamp and lack of crimp, I haven't seen that LC match brass is any different than the regular stuff. It's all good stuff.

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Old February 23rd, 2008, 10:20 PM   #4
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"However, surprisingly, this translates into very little difference between the internal capacity between the the heavy and light cases. Not much difference between regular and match brass" other than the headstamp and the fact that the match brass doesn't have a primer crimp.

if i were to load all this brass with the same bullet, crimp & primer, would it be reasonable to expect about the same performance.
loaded the same , but segregated by headstamp?

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Old February 24th, 2008, 06:24 AM   #5
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hello,for me,and i dont want to make any one mad,its come to be thankful you have them!!if i was to try setting a world record in f-class at 1,000 yds or whatever then checking the inside volume would be worth the trouble.when i used to race cars years ago it was cc volume of the chamber and ports,not if the head was within 2 lbs!! i use lake city brass with good results or any other mil brass.i have ran mixed years and with my m1a and savage bolt no problem getting under 1" at 100 yds with the 147's.which is good enough for me.lapua,norma are very good brass,but even at my cost of 225.00 for 500 pieces i cannot afford it.right now i have been getting a bunch of the LR118 brass for a really good price.and with all the big companys buying all the mil brass and sending it right to china the price will still go higher.use it,try it and enjoy.

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Old February 24th, 2008, 04:42 PM   #6
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if i were to load all this brass with the same bullet, crimp & primer, would it be reasonable to expect about the same performance.
loaded the same , but segregated by headstamp?
Yeah, for normal target shooting (not 1k), that would be fine. But, why crimp?

Don

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Old February 24th, 2008, 10:23 PM   #7
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crimp

When i said crimp, what i should have said, was same reloading practices.
1133, is there any more of that brass lurking around searching for a good home?

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Old February 25th, 2008, 12:47 PM   #8
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I would venture to say that ........."It would depend on, what you want out of your ammo?"

For just reasonable safe/accurate ammo to 100 yds.........or MATCH ammo out to 600 yds. (or 1000 yds)?

Aloha, Mark

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