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I had the same problem today with my 16 inch CMMG carbine barrel. I fired several different loads that all worked fine. The UMC 115gr would not cycle. 220 subs cycled. 147 gr. with 17 gr of lilGun. Hornaday 110gr sp w/17.2 gr lilgun all worked fine. The UMC 115gr also hit 6 inches lower than the oth...

The brass will fall all the way in when it's upside down. When you set it up on the press like the video, look down threw the top of the die and you should see the crimp closing around the bullet. The die is loose until it is under presure.

I read about all the problems people are having with their uppers on the forum. Then read the CMMG problems I should be having, but have had zero problems with my 16 inch CMMG barrel. It works on either of my lowers (S&W and armalite) or either of my BCG's. shooting supersonics and subs.

Ordered on Jan 5th. Got a shipping notice from MidwayUSA April 18

Been waiting since Jan 5th.

Are the Sierra 125 gr OTM the same as the 125 GR Spitzer? If not what's a good over all length for the Sierra 125 gr Pro-hunter?

I recieved mine in the mail yesterday. They all look good. Size matches up perfect to the primed brass bought from Midway.

No issues with mine either. I have only shot subsonic so far. Waiting on two different orders of supersonic ammo to ship. The only CMMG part I am using Is the barrel. The rest is Smith & Wesson and DMPS.