Guys, I have two guns that love loads of BH209, better than anything else that I have shot through them. The problem is that both of these guns (one side hammer rifle, the other a Knight TK2000 shotgun) have #11 Percussion cap ignition. I have been dropping a 5 grain primer of Pyrodex RS down the bore and then the main charge of BH209 with excellent results, it's never misfired. Since I'm using #11 caps, I need the Pyrodex to be able to ignite the BH209 charge but my issue is that even at 5 grains, the Pyro leaves a lot of fouling in the bore. I'm looking for a less dirty primer of smokeless that has enough energy to ignite the BH209 charge.
Do I have any options for replacing the 5 grains of Pyrodex with a small charge of a smokeless powder that is hot enough to set-off the BH209? Here's my inventory of powders...
N-110 N-120 Red Dot Lil Gun Accurate 5744 IMR 3031 IMR 4198 IMR 4350 IMR 4320 IMR SR 4759 H 322
If something else is better than what I have listed, let me know and I'll get some. Thanks for any help. BOB
Personally I think any smokeless in those guns is a no-no. For my taste just use some real blackpowder. Goex, Swiss, Kik, Black Diamond. You are going to have to clean if you use anything like black or a sub as a booster. Just as well get the sure fire stuff. If you want to find out more about duplexing try a search on what the guys use that shoot big bore long range black powder cartridge using a smokeless booster charge to help keep the barrel clean and reduce need to swab and use a "blow tube". I really don't think that #11 cap is going to light the fire on smokeless any better than it ignites BH209. Those smokeless powders need a lot of heat and compression to ignite and that #11 don't give what you need.
Last Edit: Aug 2, 2015 21:40:49 GMT -5 by 10ga: safety first, then accuracy
I shoot a Kahnke model 94 and use a magnum number 11 cap with 10grains of black mag then 100grains of blackhorn 209 with a 325 flex tip with a harvester crushed ribbed sabot and it works wonderfull.I don't think they sell blackmag3 any more though but triple 7 will work also,I just thought blackmag3 was cleaner. cabelas still sells Alliant powder called black mz that is supposed to be non corrosive and should work also.
Just some info I picked up elsewhere that may prove useful to you.
In page 83 of Dave Ehrig's book "Muzzleloading for Deer & Turkey", he lists some information on percussion caps and primers.
#11 standard cap - 6.53 cc of gas at 3,024 degrees F when fired. #11 magnum cap - 7.59 cc of gas at 3,717 degrees F when fired. U.S. #2 musket cap - 14.36 cc of gas at 3,717 degrees F when fired. #209 shotgun primer - 21.98 cc of gas at 3,024 degrees F when fired. #200 rifle primer - 11.68 cc of gas at 3,024 degrees F when fired.