My barrel is really not looking good right now. It is a 54cal 1-48" twist. I plan to hunt with roundballs. If I cant get this barrel back into shape I think I will get a slow twist GM. I am not giving up yet but if I were to get a slow twist GM do you think I should get a 54cal or a 58cal? I am not worried about how easy it is to get the stuff for it because I get my stuff on the internet and everywhere I buy from has 54 and 58cal stuff. I know that the 58cal is one of the best RB cals out there but the 54cal is good to. I would be using it for antelope and maybe elk. I know the 54cal would do good on antelope but the 58cal would do better on elk. I know Both will get the job done on both animals. What would you suggest? I know that the 58cal would take down anything I would ever want to hunt.