MickB Posted April 10, 2014 Share Posted April 10, 2014 It would seem that .308 pattern AR rifles take standard AR15 match triggers. is there any concern with certain triggers that do not reliably set off hard primers with milsurp .308 ammunition? As an example, would there be any issues with a JP trigger with JP speed hammer and yellow springs? Looking to hear from you Heavy Metal guys... Mick Link to comment Share on other sites More sharing options...
bagdrag Posted April 10, 2014 Share Posted April 10, 2014 I thought JP recommends at least their enanced reliability springs or duty springs. Link to comment Share on other sites More sharing options...
amccallister Posted April 10, 2014 Share Posted April 10, 2014 (edited) I wouldn't count on the yellow springs setting off hard primers. If you want reliability with any ammo, I would recommend looking at the Hiperfire 24c. It's a really nice trigger with a sub 3 pound pull, and the amount of hammer energy it produces is ridiculous. As bagdrag mentioned, it's probably a good idea to use a heavier hammer spring with JP if you decide to go that route, which will unfortunately give you a heavier trigger pull. Edited April 10, 2014 by amccallister Link to comment Share on other sites More sharing options...
MickB Posted April 10, 2014 Author Share Posted April 10, 2014 Any reason to not get the Hiperfire 24E? Not sure I like the straight trigger and would prefer to stay with a traditional shaped trigger.... Mick Link to comment Share on other sites More sharing options...
amccallister Posted April 10, 2014 Share Posted April 10, 2014 Any reason to not get the Hiperfire 24E? Not sure I like the straight trigger and would prefer to stay with a traditional shaped trigger.... Mick Nope. The E model is of the same basic design and uses a full power hammer spring as well, it should work great. Link to comment Share on other sites More sharing options...
Dan Sierpina Posted April 10, 2014 Share Posted April 10, 2014 Timney's ".308" trigger will not light off Hornady Steel Match. The hammer springs are light, and the trigger spring is what makes the weight. Couldn't put a heavier hammer spring on it either. I sampled all the Hiperfire triggers at FNH last year, the E was the one I liked the feel of. Put the shoe on it, no flat trigger anymore. CMC should light off any primer in a .308 case. The hammer spring is stout. Link to comment Share on other sites More sharing options...
RiggerJJ Posted April 10, 2014 Share Posted April 10, 2014 Not really sure what springs are in my JP ar10s, (LRP 007), but the trigger pull is sub 3lbs and feels just like my JP ar15s. Probably around 2.5lbs, right where I like em. Never had a problem with lighting hard primers like CCIs for ARs. So the JPtriggers work and work well. jj Link to comment Share on other sites More sharing options...
HRider Posted April 13, 2014 Share Posted April 13, 2014 I had problems with JP yellow springs and the factory hammer in my AR10. Armalites have a firing pin spring, I removed it and yellow springs were very reliable, then I must have got a lot of ammo with soft primers as I had a few slam fires. I put the spring back in and no more problems. I have ran an AR Gold trigger before and am currently running a Wilson trigger without any reliability issues, even with the firing pin spring in place. Hurley Link to comment Share on other sites More sharing options...
Vincent C Posted April 13, 2014 Share Posted April 13, 2014 I have an AR gold (SR gold) trigger in my AR10. It does not reliably ignite Hornady Steel Match. I am going to replace it with something if I can't make the hammer spring heavier. Sounds like the hyperfire triggers are worth looking into. Link to comment Share on other sites More sharing options...
reptoid Posted April 13, 2014 Share Posted April 13, 2014 I have an AR gold (SR gold) trigger in my AR10. It does not reliably ignite Hornady Steel Match. I am going to replace it with something if I can't make the hammer spring heavier. Sounds like the hyperfire triggers are worth looking into. If you contact American trigger, they can probably hook you up with a stronger spring or tell you how to fix it. Link to comment Share on other sites More sharing options...
JBOT5000 Posted May 4, 2014 Share Posted May 4, 2014 I shot my DPMS 3g1 yesterday which comes factory with the JP trigger reliability kit ie the yellow trigger spring and RED hammer spring. This is the minimum power kit that JP recommends for the 308 platform. IF you're shooting military ammo you may need a little extra power for reliable ignition you will probably be okay though. It it's easy to switch to the JP full power spring if you need to. Link to comment Share on other sites More sharing options...
MickB Posted May 5, 2014 Author Share Posted May 5, 2014 I acquired a Hiperfire 24T and installed it in a DPMS G2, and it is having no problems with military ammo so far.... Mick Link to comment Share on other sites More sharing options...
JoeBoboutfitters Posted May 7, 2014 Share Posted May 7, 2014 Hiperfire (24, 24E, 24C, 24G), Timney 4LB, or POF 4LB AR trigger would all be good choices. Link to comment Share on other sites More sharing options...
Vincent C Posted May 7, 2014 Share Posted May 7, 2014 I have an AR gold (SR gold) trigger in my AR10. It does not reliably ignite Hornady Steel Match. I am going to replace it with something if I can't make the hammer spring heavier. Sounds like the hyperfire triggers are worth looking into. If you contact American trigger, they can probably hook you up with a stronger spring or tell you how to fix it. I sent American Trigger an email (the only contact info I could find) on April 25th and have not heard back. Link to comment Share on other sites More sharing options...
bagdrag Posted May 7, 2014 Share Posted May 7, 2014 I have an AR gold (SR gold) trigger in my AR10. It does not reliably ignite Hornady Steel Match. I am going to replace it with something if I can't make the hammer spring heavier. Sounds like the hyperfire triggers are worth looking into. If you contact American trigger, they can probably hook you up with a stronger spring or tell you how to fix it. I sent American Trigger an email (the only contact info I could find) on April 25th and have not heard back. Have you tried calling them? Link to comment Share on other sites More sharing options...
Vincent C Posted May 8, 2014 Share Posted May 8, 2014 I have an AR gold (SR gold) trigger in my AR10. It does not reliably ignite Hornady Steel Match. I am going to replace it with something if I can't make the hammer spring heavier. Sounds like the hyperfire triggers are worth looking into. If you contact American trigger, they can probably hook you up with a stronger spring or tell you how to fix it. I sent American Trigger an email (the only contact info I could find) on April 25th and have not heard back. Have you tried calling them? I could not find a phone number on their website, but I will try calling PACT, their distributor, next. Link to comment Share on other sites More sharing options...
reptoid Posted May 8, 2014 Share Posted May 8, 2014 (edited) (775) 886-0862 American Trigger Corp 1 (800) 722 8462 PACT Edited May 8, 2014 by reptoid Link to comment Share on other sites More sharing options...
P.E. Kelley Posted May 8, 2014 Share Posted May 8, 2014 I run CMC in my 308's and it lights 1978 vintage mil. surplus and Hornady Steel Match. Link to comment Share on other sites More sharing options...
uhcoog1 Posted May 10, 2014 Share Posted May 10, 2014 I run the JP with the heavier 3.5 lb spring on my 308. I run Timney in my ar15's. JP with heavier spring is heavier than the 3 lb timney's (duh), but with adjustments it's very crisp and little difference is felt when shooting. Link to comment Share on other sites More sharing options...
PacMan Posted May 14, 2014 Share Posted May 14, 2014 Didn't think this would be an issue with Timney' 308 trigger, but it failed to reliably light Santa Barbara battlepack 308s. Link to comment Share on other sites More sharing options...
Dustbuster1 Posted May 17, 2014 Share Posted May 17, 2014 Hiperfire 24e in a sig 716 I have bitchslaps mil ammo primers into next week. I like the fact u can easily change the springs to fine tune it. Plus it feels great Sent from my iPhone using Tapatalk 2 of course it ate my spelling. Link to comment Share on other sites More sharing options...
Warpdrv Posted May 17, 2014 Share Posted May 17, 2014 I'm surprised no one mentioned Giessele triggers. They are great triggers and have a wide variety of flavors. Link to comment Share on other sites More sharing options...
spd522 Posted May 20, 2014 Share Posted May 20, 2014 My DPMS would not reliably set off surplus with a JP /yellow spring set up. Or even when I put a mil-spec hammer spring in it. Nor would it set off Hornady Steel Match. All other commercial and reloads go bang without problems. I have put in a Hyperfire but have not yet tried it with surplus or HSM. Craig I Link to comment Share on other sites More sharing options...
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