Steve Koski Posted August 30, 2011 Share Posted August 30, 2011 My pansy load for IDPA is presently 3.6 gr WST under a 180 Montana Gold JHP at 1.135" COL. This does 761 fps/136 power factor from my G35 with a stddev of 5. I fired 300 of them at a recent match and had one failure to feed. Probably because of not enough oomph. Should I go to 3.7 grains? Should I bump down the COL to maybe 1.125? Your thoughts? Koski Link to comment Share on other sites More sharing options...
BlueOvalBruin Posted August 30, 2011 Share Posted August 30, 2011 What spring are you using? I go down to a 13lb ISMI with light .40 loads in my G35. Runs like a top although ejection is kind of weak, but still works 100%. Link to comment Share on other sites More sharing options...
Steve Koski Posted August 30, 2011 Author Share Posted August 30, 2011 (edited) I'm using a stock spring and would kind of like to keep it that way...But I do have a 13# ISMI on hand. Edited August 30, 2011 by Steve Koski Link to comment Share on other sites More sharing options...
DWFAN Posted August 30, 2011 Share Posted August 30, 2011 Do you think a 165gr bullet at same PF would help ? Link to comment Share on other sites More sharing options...
Rob Tompkins Posted August 30, 2011 Share Posted August 30, 2011 The lightest PF I got run in my G35 with a stock spring was ~140-145PF. Below that the slide seemed to be is slow motion. I have a ligher spring but have not tried it yet. A loca 'smith who works mostly on Glocks told me a 13# spring is good across the board to include factory ammo. Link to comment Share on other sites More sharing options...
Steve Koski Posted August 30, 2011 Author Share Posted August 30, 2011 DW - I don't have any 165s on hand, and it's too close to the next couple big matches to make big changes. Link to comment Share on other sites More sharing options...
salilus Posted August 30, 2011 Share Posted August 30, 2011 I have always used a 180gr BBI over 3.0gr of plain clays at 1.125. Its about a 150 pf but feels softer than factory 9mm. Its almost cheating. Link to comment Share on other sites More sharing options...
RH45 Posted August 30, 2011 Share Posted August 30, 2011 I could never get my 35 to run reliably with the stock spring, under 140pf. I went to a lighter spring, but, I don't remember the weight. Link to comment Share on other sites More sharing options...
a.roberts Posted August 30, 2011 Share Posted August 30, 2011 I have always used a 180gr BBI over 3.0gr of plain clays at 1.125. Its about a 150 pf but feels softer than factory 9mm. Its almost cheating. This is my minor load as well. Comes out around 145pf in my 35 Seems to run well with a 15 lb spring. Link to comment Share on other sites More sharing options...
BlueOvalBruin Posted August 30, 2011 Share Posted August 30, 2011 Hmm, running minor with a stock spring. I think your best options have been mentioned already, either bump the load, or go with a lighter bullet. I did the latter plus used the 13lb ismi. The bear creek 140gr moly bullets work well, and the pressure is low enough to not cause leading in the stock barrel. The G35 slide and barrel are heavier than the G34 equivalents, which makes the recoil feel softer but reliability tricky with the stock spring and minor loads. Link to comment Share on other sites More sharing options...
Joe4d Posted August 30, 2011 Share Posted August 30, 2011 OAL is set for funtion, Your gun is feeding fine so I wouldnt change it, The only known constant you can change short term would be to bump up to 3.8 grains, The slide will cylce a bit faster and will probably help your times. Now for a long term solution, Develop your Major PF load with WST, and 180 gr bullets, then buy the same brand type of 155 grain bullets, do nothing to your die or powder settings, just switch the bullet, you'll come up with a 140 pf load that will still run your gun. Link to comment Share on other sites More sharing options...
Steve Koski Posted August 31, 2011 Author Share Posted August 31, 2011 I just put together 200 at 3.7 grains. I'll try these during practice with the stock spring and see how it goes. Koski Link to comment Share on other sites More sharing options...
98006 Posted August 31, 2011 Share Posted August 31, 2011 I think you might have to go up 3.8 or even 4.0 . your load is interesting in that I use the same load,but with a 180 gr lead bullet. I get about 750 from my 5" mp pro. usually it takes more powder to move a fmj the same velocity. Link to comment Share on other sites More sharing options...
Steve Koski Posted August 31, 2011 Author Share Posted August 31, 2011 I had the 3.6 WST/180 Speer TMJ (different bullet) loads chrono'd at a major match a while back, they made 135 PF. They clock the same overy my Chrony. The dang 3.6'ers give me malf's every once in a blue moon though. Maybe it is the Glock barrel effect giving a boost in velocity. Koski Link to comment Share on other sites More sharing options...
98006 Posted August 31, 2011 Share Posted August 31, 2011 Could it be every once in a while your powder measure is dropping a little light? I would just bump it up to 3.8 and see Link to comment Share on other sites More sharing options...
Steve Koski Posted September 1, 2011 Author Share Posted September 1, 2011 I shot 80 rounds last night at 3.7 grains, and had one malf on me shooting weak hand only. DAMN IT. Up next: 3.8 gr WST. Link to comment Share on other sites More sharing options...
kalaur Posted September 1, 2011 Share Posted September 1, 2011 3.6 of WST on a 180 FMJ is a pretty light load. I run 4.8-4.9 gr WST on a 170 LEAD bullet in my STI. You'll probably have to bump up your charge considerably to get consistent feeding, or start replacing springs. Link to comment Share on other sites More sharing options...
Steve Koski Posted September 2, 2011 Author Share Posted September 2, 2011 3.7 WST with the 13 lb ISMI spring ran just fine for 40 rounds weak hand only. Link to comment Share on other sites More sharing options...
BlueOvalBruin Posted September 2, 2011 Share Posted September 2, 2011 My G35 worked fine with loads down to 129PF when using the 13lb spring and a 180gr bullet. Keep using that spring and you'll be fine, try you 3.6gr load again too. You'll probably end up liking that spring more anyway. Link to comment Share on other sites More sharing options...
Boxerglocker Posted September 2, 2011 Share Posted September 2, 2011 (edited) Drat double tap Edited September 2, 2011 by Boxerglocker Link to comment Share on other sites More sharing options...
Boxerglocker Posted September 2, 2011 Share Posted September 2, 2011 (edited) I ran 3.9 WST with a 180 MG FMJ at 1.125 for minor loads out of my G23 back when I still loaded .40 ran 133PF with no malfs and the stock spring set-up. YMMV. Edited September 2, 2011 by Boxerglocker Link to comment Share on other sites More sharing options...
Steve Koski Posted September 2, 2011 Author Share Posted September 2, 2011 Thanks BOB. I'll give it a try. Good to hear BG. Koski Link to comment Share on other sites More sharing options...
cgrivois Posted September 4, 2011 Share Posted September 4, 2011 Do you find that the ISMI springs need to be broken in? Im trying to develop a mouse fart load for my G35 as well and am getting several failure to eject. Running 3.6gr of Vhita320 under 180gr PD. Tried a 13# and 11# main spring with same results. I realy didnt notice a difference in the springs when I rack the slide which makes me wonder if spring needs to be broken in. Got it stored at slide lock to help weaken the spring. Link to comment Share on other sites More sharing options...
Steve Koski Posted September 5, 2011 Author Share Posted September 5, 2011 CGR, I haven't used my 13 lb ISMI's much, so I can't say. I bought it for my son to run in a Glock 22, but the 140 PF loads run just fine with the stock spring. Koski Link to comment Share on other sites More sharing options...
Aircooled6racer Posted September 5, 2011 Share Posted September 5, 2011 Hello: I was using a 13lb ISMI recoil spring with 3 coils cut off and 131PF for my Glock 35 in IDPA. I was also using 155 and 185 grain Precisions at the time. It ran 100% and was very soft and accurate. The ISMI spring will take a set and will not change after that. I would use the 13lb spring and reduce your load down and check accuracy. I think you will like it better Thanks, Eric Link to comment Share on other sites More sharing options...
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