In one of the other sites, a greatly experienced cap and ball shooter tried a .44 revolver with hollow-based conicals from a special mould.
He reported that accuracy was basically unchanged. No profound improvement.
However, seems to me that a hollowbased bullet would be a means to get a smidgen more powder in the chamber: fill the base with FFFG black powder and glue a disk of tissue paper over it.
The main charge ignites, the tissue paper burns, the charge in the base ignites and you might get a smidgen more velocity from it.
Not much, mind you. And there may be more variation in velocity shot-to-shot over what you'd gain.
Be a interesting experiment, though.
Shorty: The old, traditionally-shaped conicals of the Civil War and so on were awfully short, and I believe they didn't stabilize well, but the Lee design is longer.
I don't think the inaccuracy of the Lee or other conicals stems from ballistic instability, so much as it stems from ramming the cursed thing straight into the chamber.
The Lee, with its heel, helps a great deal but that rammer nose is not perfectly mated to any conical's nose. I believe that while we usually can't see it, even the best of the conicals are not often seated straight because of variances in the rammer nose, chamber diameter, bullet diameter and who knows what else?
But a round ball is different. It's awfully difficult to seat it kerslonchwise in a hole.
I too the new Chrony Gamma Master chronograph out last Sunday. Yowsah! Love having that little printer whirring away with each shot, printing out each shot's velocity in a 10-shot string. Then you hit a button on the printer and it prints out the highest and lowest velocities of that 10-shot string, difference between the high and low, and standard deviation for all shots. Niceeeeeeeeeeee ...
And like the Chrony people advertise, you simply tear off the slip of paper and staple it to the target you used, for future reference.
I took my Smith & Wesson Model 17 .22 revolver, and Walther PPK .380 out with it, just to learn its operation.
It was the same PPK that destroyed my last Chrony with an errant shot.
Yep ... the ol' desert cat loves to tempt the Fates .... heh heh ... :twisted: