Hello- I?m new to this caliber and at the moment just have a Mil-spec trigger in. I added some JP trigger springs. It fired Hornady fine but was 50/50 or a little better with wolf harder primers. The trigger seemed to have creep and just didn?t feel right. It?s back to all Mil-spec now. Just wanting to see what was out there that gives lighter (crisper) trigger pull and will still work with Wolf. Thanks
Wolf ammo and trigger upgrades
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You need the JP 3.5T springs. The T is the heavier hammer spring for reliable ignition on harder primers. Grind down top rear of trigger that engages safety. Grind about .040-.050” off. Install set screw through pistol grip bolt hole to take up creep. Takes about an hour total and $12. If you have experience stoning trigger surfaces you can also stone with a white India stone and really make it nice. I do this on my utility carbines/pistols. Target guns get Jard fully adjustable.Last edited by ricsmall; 02-13-2020, 06:06 PM.Member since 2011, data lost in last hack attack
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Originally posted by ricsmall View PostYou need the JP 3.5T springs. Grind down top rear of trigger that engages safety. Grind about .040-.050” off. Install set screw through pistol grip bolt hole to take up creep. Takes about an hour total and $12. If you have experience stoning trigger surfaces you can also stone with a white India stone and really make it nice. I do this on my utility carbines/pistols. Target guns get Jard fully adjustable.
I have done up a few Anderson NB triggers with the low power springs and trigger adjustment screw sold at joeboboutfitters and it does make for a perrty nice single stage.
If done right it will come out in the 2 1/2 pound range. Used one for a bit and it ran the wolf ammo just fine.
If you can swing the money a true 2 stage like the Larue are the ssa-e is going to be the best of both worlds. Eats cheap steel cased and nice and smooth light breaking for more serious target/hunting work.
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I have the Larue 2 stage and it shoots all my 6.5 Grendel ammo, including Wolf, as well as other calibers, including 7.62x39 Tulammo, just fine. I did add an enhanced firing pin to one of my lowers though once I ran into some issues with the 7.62x39 and have not had a soft strike failure since. I got a great deal at BlackRifleArms.com. Not sure if it is still on sale or not, but that slightly longer firing pin can make a difference without having to have strong trigger springs.
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With the AR-15 in 7.62x39 the enhanced firing pin might be a benefit but I would be hesitant to use one in a 6.5 Grendel without checking the firing pin protrusion. There have been issues with 6.5 Grendel bolts overall length and firing pin lengths not playing well together. You get out of the spec for firing pin protrusion you can get light strikes with a short firing pin and slam fires and pierced primers with a FP which protrudes to deep.
I suggest you measure the overall length of your bolt and firing pin to ensure they are in spec. Brownell?s sell a FP protrusion gauge and minimum is .028 max .036.
Last edited by VASCAR2; 02-13-2020, 11:59 AM.
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The light hammer spring with a standard hammer weight (not bobbed), combined with cold weather and harder military primers is a recipe for light strikes/FTFire.
You want a full power hammer spring for reliable ignition of primers.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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Originally posted by Doug01 View PostHello- I?m new to this caliber and at the moment just have a Mil-spec trigger in. I added some JP trigger springs. It fired Hornady fine but was 50/50 or a little better with wolf harder primers. The trigger seemed to have creep and just didn?t feel right. It?s back to all Mil-spec now. Just wanting to see what was out there that gives lighter (crisper) trigger pull and will still work with Wolf. ThanksNRA Endowment Member, GOA Life Member, FPC Member, VDL Member
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