I am considering joining SASS as a lover of the "old west". But I will admit my ignorance on some of the calibers in regards to the repeating rifles. I see calibers 45LC which I know means long colt. But then I see cal 45-75; cal 40-60; cal 45-75; cal 45-60, etc., Could someone tell me where to look to find out what all these different calibers are? If the rifle is a 45LC will it take the 45-75? I am completely lost in regards to this. I thought I knew something about firearms... guess this is a stupid query. But I would appreciate some help.