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| At the time when this group was shot, 0.030" had been removed from the front sight. Group shot at 45 feet. Two of the shots were touching. One of the low shots was definitely a "light" load. |
My apologies for the belated report.
We went down a rabbit-hole on nipples. The gun owner "up-graded" but there were issues. The part of the new nipples that the percussion cap slides over was too short for CCI #11 caps and many of them did not detonate. Additionally, the flash-hole was visibly smaller than the Pietta nipples and half of those that did go-off failed to ignite the Triple Seven. Triple Seven is significantly more difficult to ignite than black-powder.
So, the nipples were changed back to the original Pietta nipples.
Over the weekend, I learned from the internet that Triple Seven is not a "corned powder" but a "riced" powder and is compressible. Black powder MUST be compressed but compressing Triple Seven changes its ignition and pressure curve characteristics.
Well, that is a horse of a different color.
At this point, I see no need to fiddle with the sights as long as we stick to 0.451" diameter, Hornady round-balls and 25 grains of FFFG Triple-Seven and 0.7cc of turnip-seed filler.
Our focus will now shift to making how far we press the ball into the cylinder as repeatable as possible.
Referencing back to the target shown at the top of the page: a 3"-by-5" index card centered over the aiming point covers four of the five shots and the fifth shot touches the lower edge of the card. In my book, that is minute-of-bunny-rabbit accuracy at 15 yards.
Lifting notes: 6 X 135, 2 X 6 X 205, 6 x 215, 6 X 225, 6 X 235(PR) for total of 7320 pounds
Wow, you have a lot of turnip seeds to use them for filler.
ReplyDeleteBut then again, I just bought my 2025 garden seeds. .7cc of turnip seeds would be a full packet of them right here.
Bulk turnip seed is sold in farm supply stores for deer food-plots. It runs between $2 a pound and $4 a pound.
DeleteA pound goes a long way.
skip the filler, use felt wads. You can make your own with a o.50 punch and cheap felt bought in bulk.
ReplyDeleteYou choice of powder is....interesting.
I can load filler faster when prepackaged in .38 Sp brass with the ends plugged with ear plugs. The turnip seeds roll like ball bearings. My fat fingers don't do so great with wads...might work if they were 0.44" dia but all the wads I see are oversized.
DeleteIt will be interesting to see if any of those seeds sprout when spring comes. ---ken
ReplyDeleteSmokey turnips the new cooking craze :-)
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