I just bought a 10" 7mm-08 barrel and tried a few loads, I don't think the powder I started with is a great choice, H4350. I loaded some Hornady 120 sp with 48 gns. and some Hornady 139 gns interbond with 48 grns also, 2.800 length and they shot okay 120 gns went 2300 fps where the 139 grn went 2370 fps. I think the powder was to slow for this short of barrel, a large muzzle blast and kicked pretty good. Any suggestion, I 've only had pistol barrels up until now. Thanks, Rick