I have some factory Norma 300winmag ammo with 178gr soft point projectiles. I was wondering if it would be ok to pull and reseat them with 190gr Nolser custom comp projectiles.
If anyone thinks that's potently a bad idea... let me know.
I would recommend adjusting the powder charge, and potentially the powder type since the factory powder is probably non-canister. After saying that, shoot them and reload.
If you don't have good collet die you will have to pull...dump powder, remove decapping rod, resize (hope not to lube inside), reduce charge, put powder back in, seat bullet.