Do you use different case mfg's?

[blackops]

Hey Guys,

I have some cases a family member gave me. Looks like a mix of Winchester, hornady, PPU (red stamped primer), MKE (green stamped primer), LC stamped, PMC, FC, etc. I purchased a 308 small base die just for picking up random brass. Long story short, I have a nice AR 308 I just built. My question is...if I prep all this different brass and reload, will it affect accuracy? Do I need to stay all with the same mfg for cases? This gun is a precision build. Really appreciate the feedback guys.

 

[rcmodel]

Size it, trim it, and weigh it.

If it weighs the same, it is the same for all practical purposes.

If you find one brand or more that weigh several grains +or - the average, use them for sighting in or blasting ammo.

rc

 

[LiveLife]

I usually separate military .308 brass with thicker walls from commercial brass which reduces internal case volume.

But if you are looking for precision, you would need to do water volume test to sort case by capacity.

Not all content may apply to your semi-auto .308 but you can glean a lot of good information for precision .308 reloading on this link starting with .308 case selection - http://riflemansjournal.blogspot.com/2011/01/cartridges-1000-yard-308-case-capacity.html

 

[witchhunter]

Pick the one you have the most of and use it exclusively. Swap the rest to other loaders for what you use. Use the same brass, primer,powder and bullets for consistency. Consistency = accuracy.

 

[Walkalong]

But if you are looking for precision

buy some Lapua and concentrate on other things.

For general playing around, mixed brass is fine with the exception of the odd very heavy or light case.

For informal target shooting, buy one headstamp/lot.

 

[USSR]

buy some Lapua and concentrate on other things.

+1. There's a reason why everyone almost to a man uses Lapua brass for precision work.

Don

 

[GLOOB]

Load it all. Then when you load your rifle, sort out 5 of each headstamp and shoot a group with each one without changing your zero.

This way you can see for yourself if it makes a difference in POI or accuracy.

 

[FROGO207]

Before you go and try to size them look inside of one of each type with a flashlight. Make sure you have one hole, that makes them Boxer primed and reloadable with standard dies. Two holes and they are berdan primed and not readily reloadable here in the US. Also you will have to remove the crimp from those that are crimped/staked before repriming them the first time.

I use everything boxer primed for blasting ammo and adjust for case volume as needed to keep them at same POI/pressure.

 

[oldreloader]

If you are shooting for fun don't sweat it.

 

[Smokey Joe]

Mixed brass...

Blackops--For shooting a semi-auto, non-accurized rifle, IMHO, you can FL resize the mixed-manufacturer brass and shoot it.

When (if) you ever get serious about accuracy you'll have to do some sorting, for which the above posters have given you several good suggestions. But for shooting for fun, hey, load 'em and shoot 'em.