Roland the Thompsongunner Posted August 7 Report Share Posted August 7 I had ejection issues recently with 9mm ammo in my MP38. I have the gun about 15 years and never had a single stoppage. Last time out two times it failed to eject the empty. Switched ammo and ran fine. Did not check the brass unfortunately as at the time I thought it was the gun. Will keep an eye on things going forward. Guns are way to valuable to damage especially guns with matching barrels or guns that are very difficult to change barrels in like a Thompson Link to comment Share on other sites More sharing options...
Rich.Urich Posted August 7 Report Share Posted August 7 I shoot about 1000+ rounds per month. About half of the ammo I shoot is Winchester 115gr. Target ammo in my pistols with no problem. I might have had 2 or 3 failure to fire so far. I also shoot a lot of 124gr. Link to comment Share on other sites More sharing options...
Got Uzi Posted August 7 Author Report Share Posted August 7 Pistols are closed breach/closed bolt where are this problem I’m almost certain is due to the weapons being open bolt. Link to comment Share on other sites More sharing options...
TSMGguy Posted August 8 Report Share Posted August 8 (edited) On 8/7/2024 at 3:32 PM, Got Uzi said: Pistols are closed breach/closed bolt where are this problem I’m almost certain is due to the weapons being open bolt. Agree, we're looking at some sort of quality control problem here. Edited August 8 by TSMGguy Link to comment Share on other sites More sharing options...
StrangeRanger Posted August 8 Report Share Posted August 8 (edited) It would be informative if someone could run a Brinell hardness test on the failed cases and on some fired Blazer Brass cases for comparison. I'd almost bet the farm that the failed Winchester cases are a whole lot harder Edited August 8 by StrangeRanger Link to comment Share on other sites More sharing options...
LSU Tiger Posted August 18 Report Share Posted August 18 This is very interesting. After reading the posts, my money is on improper annealing of the brass, It was allowed to work harden and the powder detonation was enough to burst the case. Link to comment Share on other sites More sharing options...
SP Sarge Posted August 30 Report Share Posted August 30 Any update from Win? Link to comment Share on other sites More sharing options...
MS Collector Posted August 30 Report Share Posted August 30 So . . . is there any commercially available .45 ACP ammo here in the US that is known to be safe and reliable in open-bolt guns such as the TSMG? I just recently completed what has been a 2-3 year journey with Colt TSMG #4971 to get her back up and running (which included generous help from folks on this Board). I'm now ready for some recreational shooting and need to stock up on ammo. Based on this thread I am going to avoid Winchester. What ammo should I buy? Link to comment Share on other sites More sharing options...
Got Uzi Posted August 30 Author Report Share Posted August 30 Blazer S&B MagTech (NOT MaxxTech) ArmsCorp Aquila Link to comment Share on other sites More sharing options...
StrangeRanger Posted August 30 Report Share Posted August 30 Blazer BRASS not the aluminum Link to comment Share on other sites More sharing options...
MS Collector Posted August 31 Report Share Posted August 31 Thanks, guys - the ammo recommendations are much appreciated! Link to comment Share on other sites More sharing options...
SP Sarge Posted August 31 Report Share Posted August 31 I've been running almost nothing but Speer Lawman TSMJ. Occasionally S&B and Armscor. Link to comment Share on other sites More sharing options...
spall Posted August 31 Report Share Posted August 31 21 minutes ago, SP Sarge said: I've been running almost nothing but Speer Lawman TSMJ. Occasionally S&B and Armscor. Lawman is good stuff. I've been shooting it almost exclusively through my .40 handguns for the last 15 years, and now that I think of it... I've never had a malfunction. I just knocked on wood. Link to comment Share on other sites More sharing options...
TD. Posted August 31 Report Share Posted August 31 While late coming to the party with Sellier & Bellot (SB), I have found SB 230 grain ball ammo runs perfectly in my Thompson. 1 Link to comment Share on other sites More sharing options...
StrangeRanger Posted August 31 Report Share Posted August 31 FWIW the biggest difference between CCI Blazer Brass, Speer Lawman and Federal Black Box is probably the headstamp. All are made by the same company so the case metallurgy is almost certainly the same and the powder and bullets will be similar if not identical Link to comment Share on other sites More sharing options...
Rekraps Posted August 31 Report Share Posted August 31 Which leaves the Winchester White box issue still open. I saw an old video on YouTube mentioning the same thing.... Link to comment Share on other sites More sharing options...
TSMGguy Posted September 3 Report Share Posted September 3 On 8/30/2024 at 1:38 PM, MS Collector said: Based on this thread I am going to avoid Winchester. What ammo should I buy? In many years of shooting, I've never had a problem with Winchester 230 gr. FMJ .45 ammo. I'm not about to start avoiding it now. I believe Winchester had a quality control problem, which they'll quickly identify and correct. Link to comment Share on other sites More sharing options...
Mattg203 Posted September 5 Report Share Posted September 5 I run PMC .45 ACP brass and have had zero problems in my AOC 1928A1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now