Powder suggestions for new AR?

[Clayt]

Vers,
H335 works very well in 223. W748 ain't to shabby either.
I pity the fool who doesn't crimp any AR load!!

[versifier]

Advice taken, will order FC die ASAP.

[versifier]

Test today confirmed your opinion with the first round chambered. FC die on order. 79 rounds awaiting it before we try again. I think I can get the telescoped bullet out of the case with a kinetic puller. Compressed air got the H335 out of the action. Live and learn. Looking at my records we put close to a thousand uncrimped rounds through the older Bushmaster he used to have without a hiccup. (They were all starting level plinking rounds that shot well enough for practice with 4198 & H335surp.)

Interestingly, my .30/223 hates 4198. Most anything loaded in it with H335 or its surp version does fantastic, though it also likes 2400 with 120gr cast (don't think I would try that in a .223 though). My 6.5TCU likes both 4198 and H335 with 140gr bullets; due to its twist it won't shoot anything lighter no matter what powder I tried with them.

[Hellrazor]

That will be an interesting test since the bullet isn't seated into anything. You might not have have any fun..

[Kirbydoc]

Versifier, yeah they do come out with a hammer-puller. You might try to judiciously get any remaining powder out first.

[versifier]

Most of it ended up in the action, the rest on the floor, case is empty now. Bullet was all the way inside it, but the nose peeks out when you upend it. I ought to be able to save both bullet and primed case.

[BBerguson]

I'm betting it comes out...

BB

[versifier]

Yup, on the fourth whack. Cheap lesson.

[BBerguson]

Cool! Cheap lessons are good.

BB

[versifier]

I just delivered 79rds of now-crimped ammo (H335surp, START level loads) and 200rds of a range of 4198 tests with a 53gr HPPB and a 55gr Blitz PB bullet. That ought to keep him busy.