[fuente]

There is definitely a trade off here. I use copper ammo in very short barrels since light rounds accelerate faster. Fast makes power and expansion possible. So for compact guns like .380s, 9mm, compact .45s or .357 this make sense. I don't get full acceleration of a heavy 230g in my short barrel Khar PM45. 165g has lower recoil which provides a much more accurate follow up shot.

[2111USMC]

Remington has been manufacturing a shotgun sabot slug based on this design for a number of years. Very effective.

(I just purchased a box of 5 “Accu-Tip” 12 gauge 3” shells for about $20. Very expensive but supposedly very accurate out beyond 200 yards at close to 2000 fps.)

[Pontiac]

Thanks for the info.

It makes sense but I would like to see a ballistic analysis showing the advantages/disadvantages in muzzle velocity and impact energy of these slugs as compared to more traditional safety slugs.

This appears to be a great piece of engineering but I have yet to be convinced.