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Joined: Feb 2015
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Campfire Tracker
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OP
Campfire Tracker
Joined: Feb 2015
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be accurate? With the firing pin spring all bound up and supposed inconsistent lock time? Does anyone have a jlock gun that shoots bugholes? Or are they a lost cause without replacing the FP assembly? Your experiences please.
~Molɔ̀ːn Labé Skýla~
3-7-77
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Joined: May 2016
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Campfire Kahuna
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Campfire Kahuna
Joined: May 2016
Posts: 60,657 Likes: 37 |
Nationally known gun writer here.....and I have several accurate j lock rifles.
I don't have one but a j lock 223 heavy barrel laminate rifle is supposedly one of the most accurate they ever produced.
I am MAGA.
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Joined: Feb 2019
Posts: 995
Campfire Regular
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Campfire Regular
Joined: Feb 2019
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I have a model 7 with the J lock, it shoots excellent. The J lock bugged the $hit out of me when I first got it, all mental. Never removed it and it’s never been trouble.
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Joined: Mar 2005
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Campfire Regular
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Campfire Regular
Joined: Mar 2005
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I have only have experience with one. A .22/250, it shots very well. I couldn't tell the difference between the j-lock, a ss regular firing pin assembly, and a lightweight after market one from PTG with limited testing and I wasn't going to wear the barrel out shooting paper. YMMV. I even bought a different firing pin spring. The j-lock resides in the parts box just because I like the looks of the SS better on the rifle.
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Joined: Jul 2001
Posts: 60,177 Likes: 20
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,177 Likes: 20 |
What nationally known gun writer Jim Conrad posted.....
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Joined: Aug 2009
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Campfire Outfitter
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Campfire Outfitter
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They can shoot, have replaced the ones with no lock assemblies just on principle
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Joined: May 2002
Posts: 519
Campfire Regular
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Campfire Regular
Joined: May 2002
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The j-lock slows down the locktime considerably, I just change out the striker assembly and bolt shroud.
If your going through hell, keep on going, don't look back, If your scared don't show it. You might get out b'fore the devil even knows your there. (Rodney Atkins)
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Joined: Nov 2006
Posts: 3,662 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Nov 2006
Posts: 3,662 Likes: 1 |
During that era the J-Lock was not the only issue with some rifle's I had a couple with oversize holes in the boltface, shipped them off to Gre-Tan to get the bolt bushed with new firing pin, spring, and shroud
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Joined: Jan 2001
Posts: 8,235 Likes: 1
Campfire Outfitter
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Campfire Outfitter
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No reason to have a rifle with a j lock. It's a simple swap.
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Joined: May 2014
Posts: 10,458 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: May 2014
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The j-lock slows down the locktime considerably, I just change out the striker assembly and bolt shroud. I never had a J-lock. Can you explain how the J-lock striker slows down the lock time considerably? Thanks.
I prefer classic. Semper Fi I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally
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Joined: Nov 2006
Posts: 10,815
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2006
Posts: 10,815 |
I only have one 700. How do I know if it’s a j lock? It shoots very well. Is this something I need to swap out so the cool kids will like me?
Mathew 22: 37-39
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Joined: Nov 2008
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Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2008
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The j-lock slows down the locktime considerably, I just change out the striker assembly and bolt shroud. I never had a J-lock. Can you explain how the J-lock striker slows down the lock time considerably? Thanks. Add to your question. Can anyone’s factory Remington resolve in terms of accuracy a <= .01 sec difference in lock time?
Swifty
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Joined: Feb 2002
Posts: 7,202 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Feb 2002
Posts: 7,202 Likes: 1 |
I spoke to Bobby Hart about this issue with the J Lock. He said that he had built hundreds of long range rifles with J locks on them to on ill effect.
Mr Hart said that when you cock the bolt on a J Lock rifle, if you hear a lot of grinding, the firing pin spring is binding up against the inside of the bolt body. If you do not hear the grinding, then there is no problem with that particular J lock system.
Side note, the Rem 783 has one of the fastest lock times of any action made, faster than the rem 788.
Last edited by keith; 03/31/23.
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Joined: Nov 2005
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Campfire Tracker
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Campfire Tracker
Joined: Nov 2005
Posts: 4,901 Likes: 1 |
I have owned a number of 700s with the Jlock. I always swapped them out because I think they are ugly. It never affected the accuracy of the rifle either way…good or bad.
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Joined: Feb 2010
Posts: 15,752 Likes: 4
Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 15,752 Likes: 4 |
I have two and swapped firing pin assemblies on both. On both of them you could hear the spring grinding on the inside of the bolt. I don’t know if it made a difference in accuracy but it just bugged the heck out of me.
NRA Life,Endowment,Patron or Benefactor since '72.
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Joined: Feb 2016
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Campfire Ranger
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Campfire Ranger
Joined: Feb 2016
Posts: 17,835 |
My Model 7 and ADL..243s were J lock. Shot fine. Did keep the ADL and swapped to GreTan....like others have said, on principle.
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Joined: Jan 2003
Posts: 3,457 Likes: 10
Campfire Tracker
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Campfire Tracker
Joined: Jan 2003
Posts: 3,457 Likes: 10 |
In my .17 Rem. LVSF, it made a significant difference in accuracy. The JLocks here get replaced with standard weight 700 f-pin and shroud assys. A snaked up f-pin spring that the pin drags through on it's travel (both ways) is not what you want happening inside your bolt. Add in the cheesy JLock and there you have it. Good shootin' -Al
Forbidden Zoner
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Campfire Outfitter
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Campfire Outfitter
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I have a m700 limited classic in 8x57. I turned the j lock off and left it there, never changed out the striker assembly or shroud and never had a problem with it. I'd guess you can classify Steve Gash as nationally known outdoor writer , he reviewed said gun and did not really like it. He replaced the shroud , firing pin assembly and the trigger before he thought it was acceptable to use for Missouri whitetails. I've read more than a few of his articles and come to think his main claim to smarts was marrying a damn good woman...mb
" Cheapest velocity in the world comes from a long barrel and I sure do like them. MB "
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Joined: Sep 2013
Posts: 18,015 Likes: 22
Campfire Ranger
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Campfire Ranger
Joined: Sep 2013
Posts: 18,015 Likes: 22 |
I only have one 700. How do I know if it’s a j lock? It shoots very well. Is this something I need to swap out so the cool kids will like me? ![[Linked Image from i.postimg.cc]](https://i.postimg.cc/k4tSmbYb/E9-B71-E17-D6-E5-4-D9-D-A25-F-A25-AA367-ABC9.jpg) Seen from ‘99-‘04/05, so most original ti’s will have them.
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Joined: Nov 2006
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Campfire Outfitter
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Campfire Outfitter
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I only have one 700. How do I know if it’s a j lock? It shoots very well. Is this something I need to swap out so the cool kids will like me? ![[Linked Image from i.postimg.cc]](https://i.postimg.cc/k4tSmbYb/E9-B71-E17-D6-E5-4-D9-D-A25-F-A25-AA367-ABC9.jpg) Seen from ‘99-‘04/05, so most original ti’s will have them. Thanks. I guess it's not something I need to worry about.
Mathew 22: 37-39
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