Originally Posted by Kenneth
Ok, for anyone interested,

60.0 grains, avg 2803 SD 6 ES 12

60.5 grains, avg 2848 SD 14 ES 26

61.0 grains, avg 2852 SD 9 ES 18

61.5 grains, avg 2873 SD 8 ES 15

62.0 grains, avg 2886 SD 14 ES 26

62.5 grains, avg 2924 SD 5 ES 11

63.0 grains, avg 2940 SD 6 ES 13 this was the start of a 'sticky' bolt lift and we stopped.

.300 wsm, brand new barrel, starting all over, the factory barrel liked 65 grains of H4350 and a 165 grain SGK, it would shoot the TSX's, just never as well. In fact TSX's are never my most accurate bullet,,,might be time for a change.


Pick the most accurate of the above loads and re-shoot it a couple-three times. If That load is still the most accurate of what you have, then move the seating depth up to .010 off the lands and start shooting groups again. Work back in .010 increments. When you find the right seating depth you should have an accurate load under 1 MOA. At that point you can try to fine tune the load by moving in .005 increments and trying 1 grain up and down in charge weight.

You can try whatever seating depth you want and whatever increments suit your fancy, but I have found doing this for a lot of rifles with Barnes bullets that method matters and is better than guessing. You may have to move back past .125 off to find what your rifle likes. I have a 25-06 that shoots 1.5-2.5 MOA at pressure but if I back that thing way off, down almost 300 FPS, it shoots well under MOA. Depending on the powder you use you may find similar problems to overcome.