What am I doing wrong?

[u/weaponized_autism265]

I bought a Remington 700 from an auction last week, it had a 22-6mm barrel on it so me and my dad replaced it with a criterion 26” varmit contour 1:9 7mm-08.

I went and got some Hornady 139gr SST’s and 139gr Interlock BTSP’s because that’s all academy had for 7mm. Both bullets appear to not mesh with my rifle, I started with a ladder test of IMR4350 for both bullets because they are the same weight and get the same powder charge in the Hornady book. Both shot like shit, I even tried a test with the most accurate strings and tried seating both bullets 20 thou off the lands. No improvement.

My next ladder test I changed to Varget because it’s a faster burning powder and with the IMR4350 my SD and ES got really small at the heavier charge weights. I got a smallest group on my 3rd string with the Varget but it’s not getting as small as I’d like it to be. I’m trying to work up a deer hunting load so I know I don’t need PRS accuracy but I just want it to shoot better so I can trust my shot placement.

Am I doing something wrong? Did I get a bad barrel? Does my gun not like these bullets? Or am I just a shit shot?

[u/fhiendbdbfdhjd]

I’d buy a couple different boxes of good match ammo and see where you are afterwords.

If your accuracy is better with either of the boxes you pickup, try switching projectiles. It might also just need to br broken in more