.45 acp and polygonal rifling.........

[Tracy]

I have shot and continue to shoot a limited amount of cast in the factory barrel of my G21. Haven't noticed any problems, but I also have an extended length Lone Wolf barrel for it. I feel better about using the LW barrel.

[tenx]

This isn't about a handgun story but in the early 80's I bought a new Harrington ad Richardson Ultra 300 bolt action rifle in 30-06, this one differed from the usual Mark X mauser action H&R in that it was a SAKO action with a polygon rifled barrel. Not positive if the barrel was made by SAKO or not but it is very accurate. I was a little taken back when I first looked thru the bore when I got it home but I'll take a few more polygon rifled barrels if they shoot as well as this one. Have not shot cast lead thru it yet, I'll get around to it eventually.

[BigAlofPa.]

I have shot many thousand's of Hi-Tek coated 200 gr SWC cast out of my PPQ 45 and never had any problems with leading and accuracy is on par with my 1911's.

I second the Hi-Tek. I run them in my Walthers. No leading expect the problem i had with titegroup powder. But that was across the board.