duffdawg Posted October 20, 2016 Share Posted October 20, 2016 Hey guys, first time posting so sorry if i posted this in the wrong spot. i'm wanting to build a open glock 17 in 9mm major. i was wondering how long you can load in a lonewolf barrel without reaming. thanks for any help. Link to comment Share on other sites More sharing options...
mitchiepinoy Posted October 20, 2016 Share Posted October 20, 2016 1.135oal you all good Link to comment Share on other sites More sharing options...
MemphisMechanic Posted October 20, 2016 Share Posted October 20, 2016 Load a few dummy rounds up! At 1.135, 1.145. 1.160... If the round drops into the barrel, spins freely, and falls out easily when you flip it over? You're still clear of the rifling. Repeat until one drags on the rifling when you drop it in and try to spin it, and then keep all of your ammo a few thousandths shorter than that. Remember also that the shoulder of that particular bullet profile is what is hitting the rifling. A narrow pointy 115gr bullet can be loaded quite a bit longer in the same barrels than a short fat 147gr, for example. The tip isn't what limits your length - until the round gets too long to fit in your Mags, anyway. Link to comment Share on other sites More sharing options...
duffdawg Posted October 20, 2016 Author Share Posted October 20, 2016 (edited) 55 minutes ago, MemphisMechanic said: Load a few dummy rounds up! At 1.135, 1.145. 1.160... If the round drops into the barrel, spins freely, and falls out easily when you flip it over? You're still clear of the rifling. Repeat until one drags on the rifling when you drop it in and try to spin it, and then keep all of your ammo a few thousandths shorter than that. Remember also that the shoulder of that particular bullet profile is what is hitting the rifling. A narrow pointy 115gr bullet can be loaded quite a bit longer in the same barrels than a short fat 147gr, for example. The tip isn't what limits your length - until the round gets too long to fit in your Mags, anyway. Thanks for the reply and help. it looks like with the bullet i use atm i can load to about 1.445 gonna load some up this afternoon. and chrono until i i make major. what would you recommend for pf to make sure i'm making major in all temps? Edited October 20, 2016 by duffdawg Link to comment Share on other sites More sharing options...
js1130146 Posted October 20, 2016 Share Posted October 20, 2016 (edited) Powder choice and your loads standard deviation play into this. Give this a read Edited October 20, 2016 by js1130146 Link to comment Share on other sites More sharing options...
racerba Posted October 20, 2016 Share Posted October 20, 2016 165 is the min power factor for major...i would load to at least 170... Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted October 20, 2016 Share Posted October 20, 2016 What powder and bullet are you using ? Link to comment Share on other sites More sharing options...
duffdawg Posted October 20, 2016 Author Share Posted October 20, 2016 11 minutes ago, Hi-Power Jack said: What powder and bullet are you using ? hs-6 and a 125 grain blue bullet all i have on hand atm in 124 or 125 and i've read some ppl we're making major with it Link to comment Share on other sites More sharing options...
MemphisMechanic Posted October 20, 2016 Share Posted October 20, 2016 (edited) If your ammo is as consistent as typically hoped for, then you can do the old "load to 170 so you have cushion" thing and be okay. There's some padding there for a cold day and a chrono at a major match which is slower than yours. If you have a high standard deviation (widely varying velocities) then you may need to load over 170 to ensure you make major with every single bullet they might chrono. And recall too ... that you'll want to experiment to see which load results in the least dot movement - 170 will produce less gass to work the comp than 174 and thus there *might* be less muzzle flip at a higher power factor. Edited October 20, 2016 by MemphisMechanic Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted October 21, 2016 Share Posted October 21, 2016 5 hours ago, duffdawg said: hs-6 and a 125 grain blue bullet all i have on hand atm in 124 or 125 and i've read some ppl we're making major with it I'd start with 7 gr HS6 and work up slowly with your chrono ... Link to comment Share on other sites More sharing options...
duffdawg Posted October 21, 2016 Author Share Posted October 21, 2016 (edited) 17 hours ago, Hi-Power Jack said: I'd start with 7 gr HS6 and work up slowly with your chrono ... i started with 7 as suggested and ended up with 7.9 no signs of overpressure gun shots pretty flat. was making about 168 avg pf Edited October 21, 2016 by duffdawg Link to comment Share on other sites More sharing options...
Novock Posted October 25, 2016 Share Posted October 25, 2016 Glocks are limited to magazine limits for OAL. If you run heavy plated, jacketed or FMJ round nose bullets you can load out to 1.155 for a lone wolf barrels. the coated bullets would need to be shorter or they may stick when showing clear causing a squib at the end of your stage (did that) and dump powder inside your glock. Link to comment Share on other sites More sharing options...
thormx538 Posted October 25, 2016 Share Posted October 25, 2016 I actually just got my LWD barrel back from them, for my G34. Not trying to make major, but I wanted to load my bunny fart 147gr minor loads longer. For example, Precision coated 147gr could only be loaded to 1.055", Blue Bullets 147gr to 1.100", etc.. I made some dummy rounds at my desired OAL (I think I did 1.160" for those two projectiles, plus some 135gr Blue Bullets TCs) and they reamed my barrel to fit. Link to comment Share on other sites More sharing options...
noexcuses Posted October 26, 2016 Share Posted October 26, 2016 When you order your barrel request the GT hole, it is a bit larger,longer then their standard chamber. Link to comment Share on other sites More sharing options...
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