works for ammo Posted October 8, 2020 Share Posted October 8, 2020 Since you are using the undersizing die, the i.d. of the case is being sized down .001 more than usual. The bullets you are using are coated so they vary more than jacketed and some are probably .401 dia. If you aren't belling the case mouth enough the bullet may seat crooked in the case. That's why the marks on the case with the sharpie on it are opposite of each other. I have this issue also when loading coated bullets with my 2011. I will get about 10 rejects out of 100. Now if I load Jacketed bullets or even plated, only about 3 or so fail the chamber test. All of them that fail work fine in my Glock G35 so I load at 1.135 These are some of the issues I have ran into while loading 40 Link to comment Share on other sites More sharing options...
looking4reloadingdeals Posted October 8, 2020 Author Share Posted October 8, 2020 Since you are using the undersizing die, the i.d. of the case is being sized down .001 more than usual. The bullets you are using are coated so they vary more than jacketed and some are probably .401 dia. If you aren't belling the case mouth enough the bullet may seat crooked in the case. That's why the marks on the case with the sharpie on it are opposite of each other. I have this issue also when loading coated bullets with my 2011. I will get about 10 rejects out of 100. Now if I load Jacketed bullets or even plated, only about 3 or so fail the chamber test. All of them that fail work fine in my Glock G35 so I load at 1.135 These are some of the issues I have ran into while loading 40Thanks for the help. So it seems like you’re suggestion more bell and to make sure the bullet is going in straight? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
works for ammo Posted October 9, 2020 Share Posted October 9, 2020 Yes it may help. Or ever try a mr bullet feeder powder funnel to bell the brass. Link to comment Share on other sites More sharing options...
scott_r Posted November 16, 2020 Share Posted November 16, 2020 Curious, what was your solution? Just received my TSO. Waiting on a shell-plate to start reloading for it. 1st 40. Link to comment Share on other sites More sharing options...
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