Best and probably only way to find brass at the moment is to post a wanted add on several sites. Alot of guys bought it up for the Nosgar thing and I'm sure some is floating around.
8208 in 24" 10 twist
60s 3525 ish
65s 3470 ish
87s 3030 ish
Ar comp and 70s are 3400ish
Only tried Benchmark with 87s and they are 3050 fps.
Barrels are on rifle plus 2 gas with .094 gas port and it still seems to be a bit short on gas with some loads. Still sorting that out but mine runs fine with 65s, 80s with 8208 and 87s with Benchmark. It shoots all loads well.
I also have a 28" 8 twist that only seems to like the 65s
I need to chrono that yet.
Fluffy extruded powders like ar comp end up compressed. Finer powders like 8208 and Benchmark seem to fill the case just up into the shoulder taper and aren't noticeably compressed.
Loading
60 sierras at 2.240 .020 off lands
65 v max at 2.260 .020 of lands
70 bt, 80 blitz and 87 vmax at 2.295 as they are still aways off of lands.
I'm still unclear what the freebore on our reamers is. It started as the .117 freebore and ptg was supposed to shorten the freebore to put 70 bts on the lands at 2.300 but they hit around 2.395. I have one of Sid Goodlings barrels and the freebore on it is way longer yet by around .100" so I'm not sure what is what yet. Our chambers seem to be ideal for 58 and 65 vmax as well as 60 sierra hps.
