DEWC in 12ga. full bore size --- 1,000+ grains?

[riflemanI]

found something interesting. Its a formula for determining penetration in wetpack by meplat. weight in grains divided by 7000 times velocity divided by meplat in thousands of an inch divided by 5. It seems to be somewhat accurate for pistol velocity type bullets. answers the question of velocity vs mass a little better.
example 740gr slug 1350fps .4 meplat vs 980gr slug 1175fps .4 meplat
740/7000 = .1057 * 1350= 142.71 / .4 356.7 / 5 = 71 inches of penetration in wetpack
980/7000 = .14 * 1200 = 168 / .4 = 420 / 5 = 84 inches of penetration in wetpack.

[cpileri]

Anyone happen to have a dixie slug to measure the meplat on?
So we can put that number into this formula and compare the result to actual results obtained here:
http://www.dixieslugs.com/forum1/viewtopic.php?f=3&t=5

http://www.shotgunworld.com/bbs/view...1eaafac583f141

Just to verify the formula a little.
C-

[Greg5278]

That Formula is nowhere near right. My 1043 Gr slug at 1048 FPS with a .500" Metplat will only go through 49" of Wetpack. The Formula shown gives almost double that. Google search my Name and the Linebaugh Seminar for the real Wepack and Wetpack/Beef Femut Test.
That will give You more accurate Results. I have been inpressed with the Performance of a .660" diameter 678Grain Solid and a .375 Metplat against Trees. Haven't fired it in Wetpack. Maybe I'll Volunteer some Ammo for the Next Linebaugh Seminar?
Greg
AKA 12 Bore

[Ballistics in Scotland]

You would think the kind of animal involved would have something to do with it, and buffalo and percheron horses both seem improbable. I don't believe anything else in North America, and certainly not deer, exposes any great inadequacy in killing power when reasonably well placed. I think a 1000 grain slug would entail a loss of flatness of trajectory and ability to get off a very fast second shot, both of which you need. In exchange about all it would give is the ability to kill faster than NOW, which you don't.

[riflemanI]

opps division of 5 may have been for boards not wetpack. I think wetpack was divided by 6.25. Of course its just an interesting way to compare higher weight vs higher velocity. if the bullet tumbles or flattens it would not apply. I'd would not bet my life on it but its there none the less.

[cpileri]

"... only 49 inches of wetpack..."

yeah. ONLY!

[Greg5278]

Yes only 49 inches of wetpack...! I know it's disappointing, but check out BPI's slugs tested in 10% Gelatin.
They are pretty sad. My Stuff tracks strainght in Wetpack and is recovered point on. Alot of Rifle Bullets Yaw and exit the Wetpack sideways. I seem to recall the .50 BMG exited sideways after 20 some Inches.
I recall the .416 Rigby went 26" with a Softpoint, but don't quote ME on that.
If You Hit the BEar square in the Shoulders, I doubt it would exit, but it's possible.
Nobody with a Brain would try a Texas Heart Shot on a Bear.
Greg
AKA 12 Bore