New To Reloading Question

[PeteS]

Also here's a little info on Hornady's factory Black 105 BTHP. I pulled 5 rounds just to see out of curiosity to see why I was gettin so bad ES and SD's and the powder charge average of those 5 were around 30.76 grains. Which is interesting cause all there own load data for Gas Gun specs, which is what they should be loading to for off the shelf ammo, is higher then max charge of all their data except Leverevolution, but even that maxes out at 29.5 in their book. I've heard Hornady loads stuff hot but with a round they made to have different PSI between Gas and Bolt Guns that to me is weird. I also popped/pierced factory loaded Hornady 108 ELDM ammo in my bolt gun also so idk.