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Posted: 9/1/2002 10:34:03 AM EDT
What is it?How is it?Why should i want it?
Link Posted: 9/1/2002 11:40:09 AM EDT
I assume you're talking about the JP Speed Hammer? If so, it will give you reliable ignition on DOMESTIC ammo with a lighter hammer spring. With a stock spring you get reliable ignition with hard mil-spec primers and faster lock time. The Speed Hammer it a natural counterpart to JP's revised geometry, adjustable trigger. A 3.5# clean breaking trigger with little overtravel that is reliable with all ammo is attainable with JP parts and a stock hammer spring. With the JP hammer spring you're looking at about 2.5#.
Link Posted: 9/1/2002 11:54:24 AM EDT
It is basically an aluminum bolt carrier. the idea is low reciprocating mass. A friend of mine shoots for JP. he claims it makes a big difference in felt recoil
Link Posted: 9/1/2002 7:04:40 PM EDT

... he claims it makes a big difference in felt recoil


Felt recoil in what? My kid's toy pop gun has as much recoil as an AR.
Link Posted: 9/1/2002 11:15:59 PM EDT
I use a JP Speed hammer with their yellow "J" spring. So far it has worked with any .223 ammo I've shot, but it won't work with a .22 rimfire conversion. Might work with a stock "J" spring but I haven't tried it.
Link Posted: 9/2/2002 3:03:07 AM EDT

Originally Posted By bbauman:

... he claims it makes a big difference in felt recoil


Felt recoil in what? My kid's toy pop gun has as much recoil as an AR.



Yes I agree the AR is no 300 win mag but it still has enough recoil to move your sights off target. We are talking about the world of USPSA speed shooting here, .5 seconds is an eternity. You can literally tune a "race gun" AR to the point it will have NO (ZERO, NONE, NADA) recoil or muzzle clime. This allows you to cut your double tap time on close range targets by that big .5 second.
Link Posted: 9/2/2002 5:55:40 AM EDT

Originally Posted By Fl3gun:
It is basically an aluminum bolt carrier. the idea is low reciprocating mass. A friend of mine shoots for JP. he claims it makes a big difference in felt recoil



Whoa....I thought he was talking triggers. Ops.
Link Posted: 9/2/2002 6:50:49 AM EDT

Originally Posted By Big_Bear:
I use a JP Speed hammer with their yellow "J" spring. So far it has worked with any .223 ammo I've shot, but it won't work with a .22 rimfire conversion. Might work with a stock "J" spring but I haven't tried it.



I had been wondering about that. It sounds like I need to order the LM hammer to augment the JP spring set I just installed in my tactical rifle.

Thanks for the info.
Link Posted: 9/2/2002 3:36:03 PM EDT
I put together a medium range USPSA rifle using a JP Grade III upper and a BM lower. I went for the aluminum bolt carier, I have noticed more wear then I expected, but I can double tap a plate @ 200 yds. This is fun.
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