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10/9/2009 3:02:13 PM EDT
I just finished the install on this. It feels really light and crisp, but I am concerned that I would get ignition on surplus ammo and harder primer cups like 450's. It says you can use the original hammer spring in your gun but doesn't that sort of defeat the purpose of a new trigger. I'm not so much corcerned with surplus ammo but I am with the 450s because the load I developed for my gun uses these. Anybody have this trigger or know if I'm going to have any issues. Any info helps thanks guys. BTW I already searched this and found info on the trigger but no info on ammo with this set up.

thanks in advance
10/9/2009 3:19:25 PM EDT
[#1]
I use a Bill Springfield trigger, used to run it with the JP hammer spring. Got too many light strikes. Changed back to only a stock hammer spring, still with a JP trigger spring. Now works great no light strikes and feels the same.
10/9/2009 3:38:43 PM EDT
[#2]
Quoted:
I use a Bill Springfield trigger, used to run it with the JP hammer spring. Got too many light strikes. Changed back to only a stock hammer spring, still with a JP trigger spring. Now works great no light strikes and feels the same.


Yeah I did some more searching and that seems to be the case, kinda pisses me off. I wonder what I spent a 150 bucks on I will try the stock spring and see how it feels.
10/9/2009 3:49:11 PM EDT
[#3]
You guys talking about the yellow JP hammer springs? I've never had a light strike with my 4+ ARs I have with them.
10/9/2009 4:06:11 PM EDT
[#4]
Quoted:
You guys talking about the yellow JP hammer springs? I've never had a light strike with my 4+ ARs I have with them.


What ammo are you shooting? Any hard cup surplus or magnum primers? Just curious
10/9/2009 6:04:32 PM EDT
[#5]
Quoted:
Quoted:
I use a Bill Springfield trigger, used to run it with the JP hammer spring. Got too many light strikes. Changed back to only a stock hammer spring, still with a JP trigger spring. Now works great no light strikes and feels the same.


Yeah I did some more searching and that seems to be the case, kinda pisses me off. I wonder what I spent a 150 bucks on I will try the stock spring and see how it feels.




FYI, you didn't spend $150 on springs. You spent $150 on a trigger, that has many hours of R&D put into it to make it what it is, which is not some POS factory DPMS or RRA crap. The geometry and the way it breaks is different, smoother and more precise.

When I buy my Geissele trigger, do you think I'm going to be spending $275+ for a set of springs?

If you think that the springs are the only thing that makes a difference in a quality trigger, I feel bad for you.

Now that I'm done with my rant, just use a stiffer hammer spring if you're worried about light strikes. It won't change the feel of the trigger itself.
10/9/2009 6:39:28 PM EDT
[#6]
Sorry, I sounded like a dick. just in a bad mood tonight.
10/9/2009 7:07:29 PM EDT
[#7]
Shoot it first. I have put a lot of surplus ammo and reloads with cci primers down range with no problem. My JP is @2.5 lbs.

Edit to add: if you go with a standard hammer spring, you will still be under 4 lbs. That's what they use in the .308 kit.
10/10/2009 3:23:14 AM EDT
[#8]
Quoted:
I just finished the install on this. It feels really light and crisp, but I am concerned that I would get ignition on surplus ammo and harder primer cups like 450's. It says you can use the original hammer spring in your gun but doesn't that sort of defeat the purpose of a new trigger. I'm not so much corcerned with surplus ammo but I am with the 450s because the load I developed for my gun uses these. Anybody have this trigger or know if I'm going to have any issues. Any info helps thanks guys. BTW I already searched this and found info on the trigger but no info on ammo with this set up.

thanks in advance


I have 6 of these JP trigger kits in mine and never had any problems with light primer strikes. I must qualified my statement - I also install the JP speed hammers with these trigger kits.  Surplus, Lake City bulk, and my own loads with winchester & remington primers, all lit up just fine.  If you don't have the JP speed hammer, you can just cut off the standard hammer at the hook end to lighten its weight.  I used to do that until I tried the full JP speed hammer + trigger kit combination = outstanding trigger, and haven't looked back since.
10/10/2009 3:49:37 AM EDT
[#9]
Try bobbing the hammer.
10/10/2009 8:04:22 AM EDT
[#10]
Quoted:
Quoted:
Quoted:
I use a Bill Springfield trigger, used to run it with the JP hammer spring. Got too many light strikes. Changed back to only a stock hammer spring, still with a JP trigger spring. Now works great no light strikes and feels the same.


Yeah I did some more searching and that seems to be the case, kinda pisses me off. I wonder what I spent a 150 bucks on I will try the stock spring and see how it feels.




FYI, you didn't spend $150 on springs. You spent $150 on a trigger, that has many hours of R&D put into it to make it what it is, which is not some POS factory DPMS or RRA crap. The geometry and the way it breaks is different, smoother and more precise.

When I buy my Geissele trigger, do you think I'm going to be spending $275+ for a set of springs?

If you think that the springs are the only thing that makes a difference in a quality trigger, I feel bad for you.

Now that I'm done with my rant, just use a stiffer hammer spring if you're worried about light strikes. It won't change the feel of the trigger itself.


According to the paper work that comes with the trigger the yellow springs wiill give you 3 to 3.5 lb trigger pull, with the stock hammer spring your looking at around 5 lbs. Thats why I'm a little pissed, I wanted a nice light trigger pull, not just a crisp trigger.
10/10/2009 8:08:09 AM EDT
[#11]
Quoted:
Sorry, I sounded like a dick. just in a bad mood tonight.


Thats all right some people are dicks, and I feel bad for them. j/k
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