Why are you thinking of changing?Where is a good place to buy plated/FMJ 9mm bullets? Thinking about switching from cast to a plated bullet for reloading.
Here are the specs on the reloaded rounds I was shooting. I have shot several thousand rounds of these out of several different guns including Glocks and S&W and never had this issue until this last session. I was shooting both the 26 and 19 using rounds out of the same lot of reloads that afternoon.
Glock 26 gen 3
124gr Bayou Bullets
4.5gr WSF powder
1.169 OAL
.378 Crimp
After the range session I took both barrels out my 26 and 19. The 19 is a gen 4. I could drop a round in the 19 barrel and it would seat in the chamber as it should and fall right out when tilled down. If I take the same round and drop it in the the 26 barrel it would not seat in the chamber to the proper depth. I could not push the round into the barrel to the proper depth and it would be hard to get back out. I have some factory 115gr Blazer rounds that would drop in the 26 barrel without any issue. Thinking I had a heavy fouling issue I did a very through cleaning of the the 26 barrel. I scrubbed the chamber area with a bronze brush and solvent. This helped clear up the issue with rounds dropping into the chamber. I'm thinking I got a build up of lead where the chamber meets the barrel and that is causing the issue with the rounds not seating properly.
This is what I’ve come up with. At 1.161 OAL the ogive starts to get pushed into the barrel to the point of the round getting stuck. At 1.155 the round is able to turned in the chamber and removed easily. A 124gr bullet runs about .03 longer than a 115gr bullet. Therefore the ogive of the 115 doesn’t not contact the barrel like the 124.
If I set my OAL to 1.155 will that cause any over pressure issues?