mwwilkew

I also run the warren tact/sevigny FO sights. Started out with the .245" front but switched to the .215.

Thanks for the replies so far. By FTF, I meant failure to feed. The fired brass is thrown clear but the next round does not feed from the magazine. I assume this is because the slide does not go back far enough, or, does not stay back long enough to allow the magazine spring to push the next round up into position. I'll try the test you recommend.

I’m working up some reloads for a new G34 gen3 and have a couple questions. This is the first time I’ve swapped out the trigger assembly, firing pin spring, and recoil springs on a Glock. My goal is a soft-shooting load for use in Steel Challenge (>750fps) and IDPA (>125PF) using VV N320 with 147gr bullets (trying this load based on lots of posts). Here’s my current setup: -New G34 gen 3 with a Vanek classic trigger -Stock RSA, and, ISMI 13# spring on a Jager polymer guide rod -147gr Berry’s FMJ / 3.4gr VV N320 / 1.155 OAL --> produces ~890fps for 132PF I wasn’t surprised when I got FTF’s with the stock spring since I’ve read and also experienced that the stock RSA needs about 135PF to run reliably but I was surprised that I still got FTF’s with the 13# spring. Should I expect the new ISMI spring to behave differently after a few hundred rounds (does it need to be “broken-in”) or should I switch to an 11# spring? Also was wondering if there’s a post/sticky/website that explains how all of the Glock springs interact?

Yes, thanks, I did mean March 10 or 11. Thanks also for the leads - I'll follow-up on these. I'd also appreciate any other suggestions.

IDPA, Steel Challange, USPSA... Thanks in advance.

Thanks for the replies - I appreciate the information.

I've been reloading for a few months now and have stayed within the published minimum and maximum powder weights while reloading 9mm and .40 on a 550B. The reason for staying below the maximum is obvious, but what about the minimum? Is there any problem going below the recommended minimums if I'm targeting a specific velocity or power factor? What are the consequences other than the bullet not exiting the barrel for a really low charge...lost accuracy, failure to cycle the slide? Thanks for your help.