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point308
December 13, 1999, 10:07 AM
What is the maximum velocity a projectile can reach when launched from a shotgun? I have 12g 1oz slugs that run at 1600 fps, but I would be interested in knowing if anyone has ever tried to push the muzzle velocity closer to 2000 fps. Would the slug travel faster if I reduced the weight to around 3/4 oz, and would all the powder burn?


Point308.

Dave McC
December 13, 1999, 12:52 PM
Shotgun design is based on fairly low pressures. Few loads hit 20,000,if any, centerfire rifle loads oft run over 50,000.

Reducing the slug weight might aid velocity, but with a serious loss in momentum and penetration.

And,after around 40 years of shooting standard slugs,I've never seen a deer able to tell the difference between the 2 3/4 slug and its higher priced,harder kicking 3 inch relative...

Big Bunny
December 13, 1999, 04:10 PM
I 'pass' on this one ! Surely a tech/fantasy question?

point308
December 16, 1999, 04:34 AM
FANTASY becomes reality !
Just bought Guns & Ammo Jan 2000, and there on page 80 in the 'new for 2000' section is this:

Heavyweight from Hornady: The Heavy Mag H2K shotgun slug features a Hornady 300-grain XTP Mag bullet that will essentially turn your shotgun into a .45-70 rifle. The load comes in 2 3/4 inch persuasion only and boasts a muzzle velocity of 2,664 foot-pounds. The XTP acronym, incidentally, stands for Extreme Terminal Performance, and that appears to be what this item is all about. With a 150 yard zero from a 30-inch barrel, the drop at 200 yards is 6.54 inches.
http://www.hornady.com/html2/h2k.html

Point308.

Dave McC
December 16, 1999, 06:16 AM
Interesting...

This surpasses 45-70 performance, the last time I had a 45-70 I used that Hornaday bullet at around 1850 FPS out of a 28" bbl.

However, I'll stick with my Forster style slugs, they work well as I use them...