AR 10 gas gun seating depth?

[jlorenzo]

The 130gr HPCN Sierra Matchking (not the tipped version) has a pretty good G1 BC .584 for its weight class. I have used that BC out to 1400 yards with no issues.

 

[Mark611]

I'm hoping to get mine to shoot that good, I have not made to the range yet with the new ammo I have loaded.

 

[Mark611]

Updates, I finally got to the range Sunday, I had better results shooting the 123gn Match Monsters with 38.5gns of VARGET, was able to get a 1'' 1 MOA at 100yds, so the testing will continue!

 

[DShortt]

I saw a box of the Horn 120 eldm(white match box ammo) on the shelf. Asked if I could measure a few,coal was 2.713-2.716. Digital caliper.

Cartridge base to bullet nose? If so, all that tells you is it will or will not fit in the magazine if you've measured that.

 

[Mark611]

I seated the bullets to the factory recommendations per bullet manufacture, the Nosler CC / Match Monsters were seated at 2.650 produced the best groups, I can load them out to 2.800 mag length, I'm going to load some more of the 123gn MM's and retest them, I'm also going to test some 130gn SMK's next go around and see what they do.