Thought this might be of interest to some of you DIYers who can’t find other brands of caps or just want to make your CCI’s as good as any other. I’m relatively new to BP and had to resort to making DIY caps since no others were available. Recently found a good stock of CCI #11 and didn’t want to buy different nipples, or squeeze these with pliers to make them fit better.
I made a simple push-thru sizer which does the trick and makes CCI #11’s fit nicely with only a firm push. A tapered hole(3 degrees)through a scrap bolt head with the small ID finished to .171″ works perfectly. The punch is held into a block of Delrin plastic which is attached to my small bench press so I can keep one hand on the press and the other feeding caps into the die. Took me about ten minutes to size 100 caps.
The only concern I had was if the priming compound would crack and fall out of the caps which didn’t happen to a any.
CCI Percussion Caps
From an old Colt Industries pamphlet:
“Percussion caps are now made in sizes from nine to thirteen. Ten and eleven are the best numbers for the small and medium-sized arms, and twelve for the larger sizes, although, as different-sized nipples are sometimes met in specimens of the same model, no hard and fast rule can be given. It is better to have caps slightly too large than too small, as large caps can be pinched together at the bottom enough so they will stay on the nipples, but small ones must be driven down on the nipple by the blow of the hammer, and this process frequently cushions the blow to the extent of producing a misfire.”
Mr.BC17A ….that is one awesome idea. One of the best i have seen on resizing caps which is way better than pinching caps….your method causes the cap to make a tight seal..which a pinched cap does not which can cause moisture to enter and damage the cap such as high humidity etc. Good job sir!