hickok45 filthing up a perfect good Glock 21 for our entertainment, and checking to see if a Glock can run on 19th-century technology. Good man.
“Glocks, as well as other modern hi-tech pistols are famous for functioning under extreme conditions. We thought we’d test one with the dirtiest powder one can imagine and see if it would fire a full magazine without hanging up.
“You might be interested to know that after soaking the barrel in Ballistol and running acouple of patches through the barrel to get the black powder crud out, the barrel was as clean and shiny as a mirror. There was no leading at all. I did not want to shoot more than a magazine, though, because I knew that even if there was no leading, hardened black powder residue might create the same increased pressure issues as a leaded barrel, which is what polygonal rifling is supposedly subject to causing.
“The powder charge was Goex FFFF. Don’t know exactly how much, just as much as I could get in and still leave room for the 230 grain bullet.”
Fun fact: the .38 Special was originally a black powder cartridge, although smokeless powder loads were quickly invented. That being said, black powder loads for the .38 Special were a good deal hotter than today’s smokeless powder loads, with some bullet/powder combinations pushing 330 foot-pounds of force, putting them on par with today’s .38 Spl +P+ loads, while modern .38 Spl have been down-loaded, often to around 200 foot-pounds or less, putting them on par with standard-pressure .380 ACP loads.
I don’t see anyone volunteering to shoot their Coonan with black powder .38 Special, though. This is Glock work.