.300 blackout boolit

[DDRanch]

Came across a Lee mold labeled, "Lee-AAC" mold. Anyone using one or point me in the right direction?

[Krh1326]

Is that the Lee 309-230-5R ? Real long & skinny with a boat tail?

[DDRanch]

Yes. I measured the OAL and that is 1.36", so must be same bullet.

[wwmartin]

Is that the Lee 309-230-5R ? Real long & skinny with a boat tail?

I ordered that mold from Midway on Thursday, ups shows a Tuesday delivery. Not sure why I'm starting with that particular mold alot of lead in such a small cartridge.
It will be interesting to see where this one goes.
It's been 34 years since I've dirtied an AR. Oh well, old dog needs a new trick once in a while.

Bill

[kcofohio]

Son had a good day with his .300 blackout
The Lee 155 grs loaded with 15.3 H110 worked flawlessly.
But now for the reason for follow up:
Lee 155 gr over 18 grs H335 worked flawlessly, as well. He DID NOT have a chrono available, so cannot give that data, but performed on target the same as the H110 loads.

This rifle is new to him ( Ruger AR 556 in 300 Blk ) and he was trying to install and zero a new red dot…. First time firing it…. 50 yards and less.

But still no FTF , cycles normally , locks bolt back . The data in Lyman’s AR Book that I listed up there ^ still has lots of room to increase his H335 load, when he has access to chrono.

Krh1326, thanks posting your results. I have the same mold and just cast some recently. I had seen the H335 listed in Lyman's 50th edition, and was skeptical. Of course it may or may not work for me, because it will be used in an AR pistol, different gas length. But why not give it a try.
I'll be trying those bullets out with 300-MP also.