I have been shooting Limited for the past year with my Para P18-9. Since this gun will not allow me to shoot major I am placing down in the standings. I have not been classified yet but I would call myself a C class shooter. Points down is killing me. So I am considering making the move to open. I have purchased a c-more serendipity reflex sight ( eyesight is not what it was)and will be adding a comp to my gun. I hope that these changes give me more of a chance to place higher in the standings. The questions I have is what bullet weight and powder would work to make the Major power factor? I am currently shooting 124 grain Magnus SWC lead bullets over tightgroup. This has worked well for minor but I will have to change everything to make major. I understand that I will need to move to jacketed bullets and looking at Berry's 124 grain as I have a couple thousand of them sitting around. Also what are the thoughts on the C-More I have bought. I'm still new at this after moving from IDPA, way too many rules. Thanks for any help and comments.