Thanks guys! It's a 1 in 10 twist. Is that to slow for 100 grain? I will double check the scope rings and bases but I just torqued them so I'm fairly certain they are ok. I planned on using this as a deer rifle so any idea on lighter bullets to try that would still be effective on deer? It may need bedding work but worth trying another bullet first i just would have never guessed a different bullet would affect accuracy so much.