So, this just occured to me... I used PowR Ball ammo in my 1911 as my carry ammo of choice. I know NOT to shoot lead through a Glock, but I was wondering if I should not use PowR Ball ammo in my new G21sf. I know it's not lead, but could the polymer ball that fills the cavity of the PowR Ball round give my new Glock barrel any grief? I only used this as my self defense ammo in my 1911 because it really ran smoothly like FMJ (and I no longer have the 1911 because I traded it for the 21). I have stopped using Powr Ball, I still have half a box leftover... (better safe than sorry I guess... there are PLENTY of other/better carry ammo alternatives) Anyone have a different opinion on this...
I'm no expert on the subject, but I'm pretty sure the reason you're not supposed to use non-jacketed lead bullets in Glocks is because of the polygonal rifling (this goes for H&K barrels too). I believe the amount of contact between the bullet and the barrel is much higher in polygonal-rifled barrels and because lead is softer than copper, this can deform an all-lead bullet significantly, leading to accuracy issues and potentially could cause a bullet to get stuck in the barrel.
Again, I don't know this 100%, I'm just putting two-and-two together.
At any rate, CorBon bullets are copper-jacketed so you're fine there.
Thanks for the replies! PowrBall are still made with a copper jacket, however, I gave what I had left to a friend at our range... so I will not be using the remainder in my G21. It seemed like a good choice for my 1911. I was at Gander Mountain today and asked the gunsmith what he thought, and he didn't think it would hurt any. No biggie, I was just curious. Thanks again!