Rail/scope base mounting question.

manbearpig

manbearpig

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hi folks.
im not a member of the precision crowd, but i think this question is best asked here.

when mounting something like a Farrell rail, picatinny/weaver bases, or even trad. scope bases is it advisable to put a small dollop of JB weld or epoxy under the base? I've seen some precision shooters do this but have been on the fence as to whether or not i should do it on my own rifles.

im assuming that if done, bases mounted like this can be removed easily by heating the base up a bit and giving it a tap with a mallet?
i dont swap bases around much at all - generally a base/rail is purchased for the rifle and it stays on there indefinitely.
 
for a well built base its not nessisary, using jb or the likes is almost like bedding the base like bedding an action,

make sure you clena off any and all grease / oils from your action and base and install, torqing down the screws as required. and you shoudnt have any problems.

putting an adhesive under the base is goin above and beyond what any "normal/average" shooter needs to do, maybe if your competeing at the very top level it might make a tiny amount of differance, but i dont recoment it other wise

easiesy way to check is install base only useing the rear screw and check for any gap under the front, do the same to check the rear, if there is no gaps you good to go, if you have a gap then bed the rail, useing the same method as bedding an action - release agent on the action, rough up the base, apply bedding install rail and remove extra. after its set, remove and clean release agent from action and reinstall, but i dont recoment using any thing thats an adhesive
 
manbearpig said:
hi folks.
im not a member of the precision crowd, but i think this question is best asked here.

when mounting something like a Farrell rail, picatinny/weaver bases, or even trad. scope bases is it advisable to put a small dollop of JB weld or epoxy under the base? I've seen some precision shooters do this but have been on the fence as to whether or not i should do it on my own rifles.

im assuming that if done, bases mounted like this can be removed easily by heating the base up a bit and giving it a tap with a mallet?
i dont swap bases around much at all - generally a base/rail is purchased for the rifle and it stays on there indefinitely.
Click to expand...


I use a very thin coating of blue Loc-Tite thread locking compound.............has worked for me for years........
 
I like to use a thin coat of epoxy (or JB) with release agent on the base. That way, any voids are filled, but base can easily be removed if needed, and reinstalled with a precision fit. Another little trick I use is to put a small drop of epoxy at the juncture of the base/action. That way, if the base-screws ever work loose, you can see it instead of wondering whether your scope just gave up......
 
Used to take the blue Locktite but for a while now i am using the green one, if there a micro gap it will fill it if none it is a real good seater, any hair dryer will permit you to undoo it if you have to... JP.
 
There are two reasons to use JB Weld

1) to bed the base to the action, but the base is removable
2) to lock down the base to action, not removable

I have never had a base screw come loose torqued right so I see no need for loctite or JB weld.
 
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