I'm kinda new to muzzleloaders, had 1 sold it. Any way looking at the CVA Optima V2 Nitride Barrel Break Action Black Powder Rifle .50 Caliber 26" Barrel DuraSight Scope Mount RealTree Xtra Green Synthetic Thumbhole Stock Black Nitride Finish PR2029NM and it recommends the RWS Musket Caps. Can I use 209s in it also? I have spent the last 2 hours searching and can't find a answer. Keeps bringing up №11 caps/primers this and that. Just wanted a simple answer yes or no the are or are they not interchangeable. If you have a reason why 1 is better than the other I would be interested in hearing why you think so. Thanks