- Joined
- Nov 20, 2022
- Messages
- 115
- Reaction score
- 181
Just tried my very old Accu-Shot today and since it had corroded a bit inside and was impossible at first to unscrew the "cap" top portion, I very lightly dressed the threads that the cap screws onto as well as the threads of the nipple base that screw in to the rifle. Just shooting a small rifle primer, alone, would move the "cap" about 3/4 turn on the threads, and I can only imagine what a moderate dose of Blackhorn 209 would do!Thank you Ka'imiloa. I'll have to keep an eye out for an Accu Shot. Always good to have options.
However, there was very little thread movement with shooting the small rifle primer and using a thin rubber "O-ring" at base of cap when screwing in on snugly like before. This nipple replacement will only work when there is good centering of the nipple alignment in the cup of the hammer. It is probably not going to work in my InvestArms "Siles" .54 whose hammer cup will barely clear a typical #11 cap -- unless I modify the hammer cup alignment.
Of note: since the Pedersoli hammer is very well aligned with the nipple, I was able to install a TRESO 1/4-28 thread musket nipple, and using the "brimless" and thin-walled RWS musket caps, that rifle fires them off just fine. I read years ago that a musket cap has the same brisance (firing power) as a shotgun 209 primer, so this should work for BH 209 even if the Mag-Spark nipple I ordered does not get here in time for my wife's elk hunt.
The difference is: much less hassle using the RWS musket caps, but then the breech is not sealed, so to speak, and some sort of sleeve or wax needs to be around the base edge of the cap to seal it from moisture. The Mag-Spark will be slower to set up but should provide a largely weatherproof system.
Aloha, Ka'imiloa