Wadcutter performance questions.

by Hoot , Diversityville, Liberal-sota, Friday, April 21, 2017, 13:59 (2775 days ago)

I have read numerous times, but never tested, that wadcutters become unstable at around 50 yards or so. Based on the names of who was writing this, I have not doubted their word. Couple this with the fact that most pistol games where WC's might be found are shot under that yardage.

So, what all factors into this 'instability'? I expect that seeing as how the WC is not a very aerodynamically efficient shape, that is part of the answer. Also, there has been references to the center of gravity location. 'Weight to the rear' (I think) provides more stability.

What might be the effects of heavier WC's or faster velocities? Could one see increased stability in a 38 caliber WC shot out of say, a .35 Remington at greater velocity than possible out of a .38/.357? Yep, I know about blowing the skirts off a hollow base number so let's consider that question for a DEWC. As for weight, a local caster produces a 230gr DEWC in 38 caliber for the pin shooting games. What would this increased weight do at distance?

What about different twists? Probably harder to quantify as the choices aren't that many. But could a faster twist provide enough stability for increased yardage? If so, how much? If we're talking about getting another 10 yards, it isn't much of a significant gain.

Slow Friday afternoon ponderings.

Thanks!