I have been shooting Hornady 140 SST with great satisfaction to 1000m, bought a box of Nosler 100gr brown tipped spitzers and have no reloading data for RL-19 powder. Help!
Thinking about 62.5 gr of RL-19 thru a 1-8 twist 26" 1.25"dia fluted barrel w/forward ported muzzel break at 3". Should be...