Zonie said:
I can't figure out why the presence of a wad would make the powder compact any better than the underside of a patched ball would.
Maybe, it's just the fact that your ramming the powder load before loading the patched ball?
On the other hand, there's a chance that the reason its working better is the wad is sealing the area where the patch engages the rifling?
In theory, a bore size wad will tend to wrap itself around the back of the ball.
Of course, the distance around the back of the ball is pi/2 larger than the bore so there is a good possibility that if this happens, the edge of the wad will shrink down in size and never seal the bore.
Putting on my guessing hat for a minute, there is also the possibility that the wad gets blown all to hell when the powder ignites.
Pressures go from 0 psi to well over 5000 (and in some cases over 10000) psi in an instant. There's got to be a lot of turbulence and force right up close to exploding gunpowder.
If a wad started to be blown into fragments, I can see how the pieces easily would be blown into any gaps or leaks where the balls patch meets the bore.
That should stop any burning of the patch in that area which would assure the grip of the patch on the rifling leading to better accuracy.
OK. I'll go back to my armchair now. :grin:
************************************
I checked the patches... they're so nice and clean they could be used again. Therefore, it seems logical that the vegetable over-powder "cards" (or "wads" if that is what you wanna use, but the wads ARE more like "cards") SEEM to be protecting the patches.
Anyway, therefore it seems logical that the wad (card?) is protecting the patch and possibly giving a BETTER seal on the bore as well.
I haven't chronographed the muzzle velocity the muzzle velocity of either load, but did notice that the load NOT having the over-powder wad shot HIGHER on the target than the loads having the wad in place above the powder.
This makes me wonder if the wad is LOWERING the muzzle velocity rather than raising it?!?
By the same token, these targets were shot at only 25 yards off a Lyman adjustable, aluminum rifle rest with a sandbag under the rifle's forearm and two sandbags under the "toe" of the recoil pad with the rifle held TIGHTLY against my shoulder (via "bench-rest" shooter style)... and normally, my accurate off-the-bench is excellent. (No brag, just fact).
And so, this is a puzzle to me... and I'm not sure I will EVER determine the "right" or "wrong" of it.
I.E., is it possible a load with a LOWER M.V. will shoot HIGHER on the target at
25 yards off a solid bench-rest than a load with a HIGHER muzzle velocity?!?!?!?
I dunno... it may "go" either way... eh? :hmm:
Strength & Honor...
Ron T.