I have Tripp 10mm mags. I am using these mags in a 40S&W 1911. I load my 40s 1.19-1.20. As I shoot the top cartridge is pushed toward the front of the mag (down range). I assume this is from friction between the cartridges in the mag and the slide. When the top cartridge is pushed forward the mag will not drop free. Please help.
Thanks,
Aric