thanks everyone! have been shooting 3gr.bullseye with no trouble till now. had no problems in the rugers, but was shooting the open-tops the last couple days,and found the cylinders binding, after a longer time than it should have took, i realized why. the primers were backing out! i didn't know that low pressure creates it's own problems.(besides dirty cases,or maybe stuck bullets) so,i bumped my loads up to 4gr.,hopefully will be what i need. thanks again guys.