hey guys! I just ordered a muzzleloader adaptor for my nef 12 ga single shot, with the intent of using it for m/l deer season. my question is that with a .690 ball, and patch ( not sure of the best size yet), do I need to have the barrel cut to remove the choked section, or will it be ok as is? I don't plan on using big charges, maybe 80 gr black powder or equivalent max. any help or experience with these would be greatly appreciated! thanks,- Travis