Crazy Horse
Member
Has anyone had issues (FTE) when firing 124gr bullets over 115gr bullets? I've heard of the opposite, but today I experienced multiple FTE situations from my ATI 1911 9mm? I started with a lighter spring (12 lb) than the original one that came from the factory (14 lb). The 1911 still jammed a few times with the 124gr bullets. When I switched to the lighter bullets (115gr), the issue went away. I liked the way the 12lb spring felt, but to make sure I tried each of the springs I changed it out for a 10 lb spring. By this time, I was out of 124gr so I fired 115gr bullets. No more FTE issues after 30 bullets. I left the 10lb spring as it felt good and seems to cycle better over the 14 lb spring that the firearm came with.
I tend to prefer 124gr 9mm ammo, and would have thought the 1911 platform would benefit from the heavier round, but this is the first time 115gr cycled without issue, while the 124gr bullets caused jams. The firearm is still fairly new with ~300 rounds through the barrel. Might it need more break-in time at the range?
I should add that both weights (115gr & 124gr) were accurate, so that is a non-issue. 115gr bullets are also cheaper. It's just my preference (as a reloader) to use 124 gr bullets.
I tend to prefer 124gr 9mm ammo, and would have thought the 1911 platform would benefit from the heavier round, but this is the first time 115gr cycled without issue, while the 124gr bullets caused jams. The firearm is still fairly new with ~300 rounds through the barrel. Might it need more break-in time at the range?
I should add that both weights (115gr & 124gr) were accurate, so that is a non-issue. 115gr bullets are also cheaper. It's just my preference (as a reloader) to use 124 gr bullets.