Given that SEmi-Autos tend to chew up brass a little faster than bolt guns are you guys splurging on quality brass for precision semi-auto? I guess the AR isn't too hard, but I was gonna do some M1-A/M-14 stuff and that thing kicks the **** outta brass (Not exactly precision, but I can dream).
Brass for precision Semi-Autos.
- Thread starter DocRDS
- Start date
General National Match M14 practice was four or five firings and that case is done.
7.62 ARs are generally better, not having piston-driven primary extraction.
7.62 ARs are generally better, not having piston-driven primary extraction.
I have used everything from Federal, GI "once fired" LC, Winchester, PMC, etc., and they all have a lifespan of 4-5 firings. I inspect for imminent case separation and find the number increases dramatically at the 5th-6th reload.
No one mfr was significantly more accurate or longer life with my M14. I just keep it to one headstamp for consistency. Then again, 2 MOA at 600yds is "good enough" to keep me in the 10 ring or as close as possible despite my wobbly hold....
Good ol LC brass is great for 308 AR 10s.
Capable of fine accuracy, and cheap.
And ya don't care if ya lose some.
This box of 1000 has already been fired.
Fired LC and Lapua brass against each other with the same target bullet and same powder charge in a bolt action target rifle.
The Lapua only gained .1" in 5 shot groups over random no case prep LC brass in this small test.
A tenth inch ain't worth the price of admission for Lapua that most things an AR will be engaged in for most people, most of the time.
Capable of fine accuracy, and cheap.
And ya don't care if ya lose some.
This box of 1000 has already been fired.
Fired LC and Lapua brass against each other with the same target bullet and same powder charge in a bolt action target rifle.
The Lapua only gained .1" in 5 shot groups over random no case prep LC brass in this small test.
A tenth inch ain't worth the price of admission for Lapua that most things an AR will be engaged in for most people, most of the time.
Attachments
I use range pick up, pick a brand and sort by weight. I pick a range of a few grains as good stuff and the rest is practice. This keeps SD lower.
Similar threads
