I have some loaded (75s) to 2.275 and will try them soon.
223 AR.
Are you going to single load the 2.275" loads?
If he has stainless asc mags you seat bullets out too 2.300. So no need to single shot them. I will say David has them 75 seated way too deep even for 223 service rifle loads. I'm finding 2.255-2.260 to be a good starting point. I do know if you are loading 77 Sierra otm black hills is seating them too 2.247 in their mk262 mod1 loads.
That's good info. I generally just run everything at .005" under mag length, which puts my oal at around 2.255", like you guys are running them. In an AR, it always seems to produce great accuracy. However, I guess if you can seat them closer to the lands your accuracy would probably improve.
I was reading yesterday they say Sierra, nosler, designef their 77, to be insensitive to bullet jump they have a tangent ogive. The 75 hornady's have a secant ogive, but they don't seem to mind a lot of jump. They were saying if you could get the nosler or Sierra 77's bullets anywhere near the lands due to the long bearing surface you would have some serious pressure problems.
Originally Posted by Bricktop
Then STFU. The rest of your statement is superflous bullshit with no real bearing on this discussion other than to massage your own ego.
