300BlkTalk

I'm assembling parts to send to Liberty for a Leonidas, and in doing so researching the 300Blk and storing info in my brain. While researching, of course I'm coming across a lot of threads on the big bore ARs such as the .450, .458, and Beowolf. What I've noticed on all three is a rebated rim and a ...

I got the info. threads are .5965 from the shoulder

Can you measure the length of the threads for me please?

Really? Is that because the OAL is over 16 so it's not considered a SBR? I guess the core is blind pinned and welded to the barrel, so OAL is just about 17". Can't fire it with the tube off, either. Bad stuff will come out and mess you up. They'll build you one with a removable core if you wan...

Don't need two stamps either.

Pretty surprising price for the level of performance, less than my Tirant. Of course I have to supply an upper, so it'll be pricey in the end, but still less than you'd expect.

I got the barrel, stuck an old bolt in it, into battery, then inserted a cleaning rod. Set it all up on end so gravity would hold it together, marked the rod, and got a measurement of just under 10 3/16" from bolt face to crown. My thoughts are to have my smith cut off 1 11/16", so it will...

Ok, thanks all, I'll update when the barrel comes Tuesday. Sure would be easier if liberty would cut and crown, but the barrel was on sale, so I'll break pretty even.

Ok, so stick a spare bolt in there, make sure it's rotated in, measure from the crown to the face?

Yup