So I went to the range today to see how my Glock would fire. I seemed to have the sam FTF issue using the CCI 120 Gran rounds but the Gun fired perfect with a 180 Gran round IDK. I gave the remaining 20 rounds of CCI 120 Gran to another shooter using a sig and he went threw all 20 rounds no issue. Im 100 percent not hitting the slide lever at all. MTSTREAM should I just change the spring on the slide stop lever? with the gun empty and pulling back the slide it does not lock back.
Changing the slide stop lever would be a good troubleshooting step. If you are buying parts, I would recommend you also get a recoil spring assembly at the same time. Less than $20 total in parts and good to have spares regardless.
I don't know the exact cause but it appears the slide stop lever is installed correctly. If it's not being bumped accidentally then there has to be something different happening between the 120gr and 180gr ammo.
You didn't mention what ammo the 180gr was but assuming it's a range ammo similar to the CCI 120, the speed of the slide should be a bit slower on recoil. However, it's not a lot of difference. It's possible, if there's something wrong with the springs that the difference is having an effect but that's a thin margin of difference. Changing out the parts won't hurt anything.
Do you notice a difference in the recoil between the 120 and 180?
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