Hello,

I have been loading for 9mm and .45 ACP for a few years. I recently accquired two USGI carbines and am now in love with them.
Last night I loaded my first dummy round for it. The round chambered and extracted in both guns without issues. My round seems to have slightly more crimp than the factory round next to it. Will this be an issue. Case neck was 3.30 on the factory round and 3.32 on mine. Like I said, it loaded and extracted without issue with the dummy round. I guess I just need to load some live rounds and test them.

I welcome all comments and help.

All loading done with a single stage Lee press and dies.

Cases trimmed to 1.285
110gr FMJ
CCI SRP
13.5gr IMR 2447
OAL 1.68

My reload has the gold colored bullet.

Thats a lot of crimp.  Your accuracy might suffer a little bit.

Tag for info

Why is there a crimp at all? You shouldn't be roll crimping unless there is a crimp groove.

Doesn't look like there is any crimp on the factory round, which there shouldn't be.

You're fine. Proceed to the live ammo tests. I always crimped 30 carbine for carbines to avoid the risk of bullet set back in the feeding cycle.

That doesn't look like crimp, it looks like you chamfered the outside of the case mouth. 

Your right.  Might just be the chamfer looking like a healthy crimp.

Looks fine.  I handload 30 Carbine also and as the case is slightly tapered you'll find that even with a carbide resizing die, it's easier if you lube them first. To save a bit of $$, you may want to try some plated bullets.  I've had good luck with both Berry's and X-Treme 110 grn plated bullets.  Just be careful when crimping that you don't overdo it as you can actually loosen up the bullets in the case (brass case springs back a bit while the lead in the bullet doesn't) or cut through the plating.

Bingo. That was the only piece of brass that I trimmed in which the timmer chamfered the outside. That is not the crimp.