I just tested CCI 11, CCI magnum and Remington 11 caps in my .40 Hawken caplock. And learned something I didn't expect. I was using Goex 3F and Triple 7 2F. I have had some trouble getting Triple 7 to work well in a .40, but this time it did. Here are the results:
With 50 grains of Goex 3F and .380 cast balls and old, thick pillow ticking, the CCI 11 caps averaged 1842 fps with 43 spread for six shots. I fired seven, but dropped the first "fouler" velocity because it was 90 fps higher than the next six average). Group for seven was 2.45".
Everything the same but CCI Magnum, five shots
went 1856 and 24 spread, only 14 fps more. Group was 1.9".
Then 50 grains of Triple 7 3F with a standard nipple and same patch, blew the patch. So I put down a dry patch for an overpowder wad, then the patched ball. Still ruined the ball patch, 4 3/4" group. Velocity was 2246 fps with 48 spread for five shots.
So I shot 50 grains of Triple 7 2F, but added a 1/2" square piece of felt strip insulation from Ace Hardware, dry, as an overpowder wad. Worked great. Standard nipple and CCI 11 caps worked perfectly, which surprised me. Five shots gave 1982 fps with 45 spread, and a 1.9" group.
Then I used Remington 11 caps, from Wal Mart. The package says "NEW Hotter caps! 40% More Flame Volume." Now doesn't that sound hotter? Well, six shots averaged 1977 fps with a 40 fps spread, 5 fps less than the CCI 11 standard caps, or statistically no difference. Except the six shot group was 2.3", but right on top of the first group. So when I say the standard caps work fine, they do. I expected the standard nipple would not work well, but it fired perfectly.