I was wanting to order a gun from TVM and I have the option of a L/R or siler lock could someone tell me which would be better and why? I have read that the L/R has a water proof pan and a roller frizzen and you can switch from perc. to flint if the rifle is setup that way.Are the L/R locks faster than the siler? Also are the colerain barrels accurate I was wanting to go with the swamped 38" barrel.And last what is a good caliber I can not decide if I want 50 or the 54 most of my shoots here in illinois will be from point blank to 60 yrds. but will have the chance at 100 if I hunt one of my fields now with open sights my limets will be more of the 10-50 yrd shoots but want to know the gun will harvest a deer out there at longer ranges if I put the ball where it belongs. And does the 50 or 54 shoot any flatter then the other? Thanks bowfish