AR10 loads

[KYbulldog]

Hey All, I'm looking for some starting loads for an AR10 in 308.Standard Armalite with a Rock 5R 18.5" barrel(1/11.25), rifle length gas, match chamber.
Using the following components for now LC brass, 210primers, IMR4895, Varget, and RL-15, 168 smk's, and Hornady 168 A-MAX. Any proven accuracy loads from a combination of those to work up to would be appreciated. I'll tuck away nodes for the 175smk as well, but I don't have any yet, but I know it likes it in SSA commercial loads.

Thanks

 

[stockdoc]

Try 43.5 gr of varget with a 175 smk, cci primer at 2.8 oal. Anything above that was too hot.

 

[P7id10t]

168 BTHP, RL17 @ 45.5gr, 2.816 16"bbl, ~2460 FPS
But, that's pointless, given your choice of powders, barrel and chamber.
Look at any manual, search your specific powder and bullets, do your homework and do some tests.

 

[KYbulldog]

According to OneBook/One Caliber, I saw that a max load was 44.3 of RL15 for the 168 a-max. If I reduced by a recommended 3% using mil-brass(lake city), which would have given a new max of 43 gr to work up to. The same book lists on a different page for the same bullet a max load of 42gr for RL-15??! which would have my new max for mil-surp brass at 40.75...thats a big difference. The Speer Book that came with my reloading kit (printedApr2013) says max charge of RL-15 is 45gr. Can I interchange loads for the same bullet wt. but different brand? Is a smk168bthp interchangeable with a speer 168bthp?

So I am trying to do my homework by seeing if there is anyone else out there with a similar set up and just wondering what loads anyone else was using with mil-surp brass. ??

 

[P7id10t]

IIRC, at ~45gr, you'll find RL15 or RL17 are compressed.