Replace J-Lock on a Rem LVSF

tom223

New member
I want to replace the J-Lock on my Rem 700 LVSF 22-250 and I have been looking at Tubbs SpeedLock firing pin assembly or should I get a Rem factory firing pin assembly and change out the spring to a Tubbs or should I go with something else. Any input would be very helpful. Thanks Tom
 
Originally Posted By: tom223I want to replace the J-Lock on my Rem 700 LVSF 22-250 and I have been looking at Tubbs SpeedLock firing pin assembly or should I get a Rem factory firing pin assembly and change out the spring to a Tubbs or should I go with something else. Any input would be very helpful. Thanks Tom

Replace the whole thing with Remington factory stuff - it is silly to pay a bunch for a spring with a big name on it, when it is the Same Ol' Skat.
 
I replace the J-Locks simply because of the political correctness of the damm things if nothing else.
Calahan and/or Greg Tannel also sell replacement firing pin assemblies.
Only one example, but I bought a Calahan that wouldn't fit the grove on the top of my receiver. Sent it back and bought a Gre-Tan that fit perfectly.
I doubt that us mere mortals can tell the difference in accuracy or lock time, but I still dislike em out of principle.
Luck
 
I just recently helped a friend( ex swat sniper) change out a J lock. It was on a 700 LSS mtn rifle in 260. The gun shot right at 1" with the j lock. The only thing that was changed was the lock and it is now shooting between .5 and .75. the spring must have been hitting the inside of the bolt body.
 
I swapped my Dad's older Remington 700 F/P assy for a Calahan. It works rather well. The old one was just worn out. Too many years of working the ADL bolt to unload. Next one, I will try a Gre-Tan and see what all of the fuss is about!
 
I can't really say that the Gre-Tan piece was any better than the Calahan, but at least it fit. LOL
Again, "that was just one piece". And far from a scientific study.
 
Originally Posted By: RePete

"I doubt that us mere mortals can tell the difference in accuracy or lock time... "




The lock time on the J-lock was actually half of the standard pin before it - the "J" lock pin was skeletonized, and weighed half the weight of the prior pin.


Originally Posted By: pd721elI just recently helped a friend( ex swat sniper) change out a J lock. It was on a 700 LSS mtn rifle in 260. The gun shot right at 1" with the j lock. The only thing that was changed was the lock and it is now shooting between .5 and .75. the spring must have been hitting the inside of the bolt body.

1 - That is a pure coincidence - what the spring touches or doesn't touch has nothing to do with accuracy.

2 - ALL firing pin springs rub the insides of the bolt body or the firing pin shaft - it is impossible for a firing pin spring to support itself, and not touch anything.
 
Originally Posted By: CatShooterOriginally Posted By: RePete

"I doubt that us mere mortals can tell the difference in accuracy or lock time... "




The lock time on the J-lock was actually half of the standard pin before it - the "J" lock pin was skeletonized, and weighed half the weight of the prior pin.





Didn't know that.
I still don't think the "average" rifleman can tell the difference regardless of which is faster.
I read somewhere that lock time is only a couple tenths of a second to start with.
I don't know about you, but I'd have a hard time discerning the difference in two to four tenths of a second.
Course, I'm just an "average" rifleman at best.
 
Originally Posted By: RePeteOriginally Posted By: CatShooterOriginally Posted By: RePete

"I doubt that us mere mortals can tell the difference in accuracy or lock time... "




The lock time on the J-lock was actually half of the standard pin before it - the "J" lock pin was skeletonized, and weighed half the weight of the prior pin.





Didn't know that.
I still don't think the "average" rifleman can tell the difference regardless of which is faster.
I read somewhere that lock time is only a couple tenths of a second to start with.
I don't know about you, but I'd have a hard time discerning the difference in two to four tenths of a second.
Course, I'm just an "average" rifleman at best.


I still don't think the "average" rifleman can tell the difference regardless of which is faster.

I fully agree - anyone that says they are worried about their lock time, is just "showing off for the rubes" - even a serious match shooter can't shoot better with a special firing pin spring.

Lock time on a modern rifle like the Remington 700 or Winchester M-70 is about 3 thousandths of a second... and nothing you can do is going to change your shooting or your group size by changing the spring.
 


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