DEP589 said:
Lead out of a Glock?
I know this has came up before but I would like an answer from someone who has actually shot lead through factory Glock barrels. Can you do it without damaging barrel?
I do shoot lead reloads out of my factory Glock barrels and yes, you can do it without damaging the barrel. However, I do need to state a disclaimer that Glock does not endorse shooting of any reloaded ammunition. So shoot lead bullets in your Glock barrels at your own risk.
Any fouling? How hard is lead to get out of barrel? I dont need an answer from someone who thinks they know what you can or cant do. Just from someone who has done it with or without problems.
First the basics. If you look at the pictures of factory Glock barrels and a not-to-scale loaded chamber drawing above, you'll notice that factory Glock barrels have rounded "hexagonal" rifling (
not a true polygonal rifling) with a very smooth start of rifling and fairly long leade. What all these factors contribute to shooting lead bullets is that the bearing surface (bullet base that engages the rifling) of the bullet will slide longer into the start of rifling and allow more high pressure powder ignition gas to leak around the bullet before chamber pressure starts to build to deform/expand the bullet base to seal the bullet base with the barrel (obturation) -
http://www.lasc.us/FryxellCBAlloyObturation.htm
The more high pressure gas leak around the bullet, the more you will increase gas cutting and blow liquefied lube off the bullet surface (decreasing the lubrication) to increase fouling deposit and leading of the barrel -
http://www.lasc.us/FryxellLubeCastBullets.htm
The picture below shows this fouling build up after 100 rounds shot through a factory Glock barrel. If this fouling build up is allowed to continue, you'll essentially end up with a smooth-bore barrel with reduce diameter that may increase chamber pressure incrementally. For this reason, rcmodel and I usually suggest you inspect and clean the factory Glock barrels as necessary after 200-300 rounds. I take a mini cleaning kit to the range with copper strands (Chore boy) wrapped around old copper bore brushes dipped in Hoppes #9 - a few strokes and barrels are clean. More information on leading definition/cause/location/prevention/removal -
http://www.lasc.us/Fryxell_Book_Chapter_7_Leading.htm
And don't worry about damaging Glock barrels. Tenifer surface hardening treatment of Glock's barrel and slide surfaces have the hardness of 64 HRC on the Rockwell scale, which is very hard (diamond has a hardness of 70 HRC) -
http://www.thehighroad.org/showthread.php?p=8254711#post8254711
Didnt really want to have to buy another barrel but I am spending way to much money on bullets and figured I could shoot a lot more if I started loading with lead ... Gen3 G22
You can shoot lead reloads in factory Glock barrels but if you shoot a lot during your range sessions, aftermarket barrels with conventional land/groove rifling will give you greater accuracy and cleaner barrels to clean.
I also shoot Gen3 G22/G23/G27 and have used Missouri 40S&W lead bullets in various weights with good results using W231/HP-38 at mid-to-high range lead load data. I referenced
1999 Winchester lead load data for my loads and would suggest you start out with 180 gr TCFP using 3.8 - 4.2 gr W231/HP-38 for target loads then venturing out to lighter bullet weights.
I covered loading 40S&W leading loads using W231/HP-38 on this thread using the following load data -
http://www.thehighroad.org/showthread.php?p=8394739#post8394739
I use the following
Missouri 40S&W bullets and the OALs specified work well for M&P40 and Glock 22/23/27.
I hope this helped.
Be safe but do enjoy your Glocks!