G2c 9mm reloads

[Fly]

I bought a Taurus G2c in 9mm. Gun has performed flawless, with factory ammo, with over 400 rounds. The only two semi auto other than
this one I have are a 380 & 40 SW that I have loaded with my cast bullets with lee molds & dies, No problem. I loaded 4 rounds of my cast 125 gn lead
Hi-tec coated & 3.8 Titegroup. I tested the 4 rounds while a go & my receiver is locking up just short of complete closing. It is on of those deals
where I need tp bump the rear to get it to chamber completely. I,m guessing bullet length. I set my bullets at 1.156. Lee manual shows min oal 1.42.
Could it be a little long for this bullet & charge?

Fly

[onelight]

Yes it may be to long most likely .
You should be able to see a mark on the bullet from the rifling if that is the case.
It will also act that way if your crimp is to light to remove all the flare from the case mouth .