A picture is worth...

[65GbySeven]

[ATTACH=CONFIG]16552[/ATTACH]

[tdbru]

65Gby7,
i can't quite make out the load data. but it looks like you had some fun anyway. let us know how they do.
-tdbru

[65GbySeven]

129 gr sst
ar-comp - 26.5 gr
cci 450
hornady 1 fire brass
cto 1.620
col 2.260
2400 fps @ 90* outside temp
5 shot 1 moa
16” sammi 3r arp barrel

[JTB]

I like AR Comp. Best group with it yesterday was .570. 123g ELD. Trying to keep my shooting to a minimum right now.

[Cereal Thriller]

I love shooting the 129 SST's

Testing COL left me with 2.276" COL, groups tightened up nicely with a few thousandths off the lands to spare.
Going to test some new loads to squeak out more speed, been using IMR 8208 powder.