What is a bolt lift kit?

[scottkr]

Can someone please explain what a bolt lift kit is and what it does and why would someone need or want one? Do I need one on my 12FV .22-250?

[BillPa]

Can someone please explain what a bolt lift kit is and what it does and why would someone need or want one? Do I need one on my 12FV .22-250?


In a Savage bolt there is whats called the "cocking piece sleeve", it rides on the face of the BAS ( bolt assembly screw). Every time the bolt is rotated the BAS rotates and the sleeve remains stationary resulting in a friction point between the two parts. There have been instances where the sleeve has actually worn into the BAS.

The "lift kit" is typically a shortened 38/357 case with a ball bearing secured ( glued) in the primer pocket to reduce the contact area between the BAS and sleeve thus reducing the friction.
http://i2.photobucket.com/albums/y48/sharp-shooter/bbcockingbutton.jpg

Do you need one? Yes and no. Depends if you satisfied with the operation as it is now and your not getting excessive wear between the parts.

Bill

[cwop]

i got one real simple to install. just undo your bolt and put the thingee in and your done.

very simple and helps a lot

bob

[scottkr]

I think I'm gonna have to look at this closer. I'm not following the explanation.

[egavas]

How long does it usually take for the sleeve to wear into the BAS ?

[tacticalj]

i wonder if thats what i need? my bolt is harder to release then i would like it to be. Maybe it just needs timed!

[hotbrass]

Do you need to take anything off the BAS? Or is there enough play in the sleeve to make up for the added bearing and case?

[Netz]

i got one real simple to install. just undo your bolt and put the thingee in and your done.

very simple and helps a lot

bob


You need to trim the BAS the thickness of the lift kit.
I have an older slotted BAS and it actually slides into the cocking sleeve. that would bind (compress) the firing pin spring quite a bit.
There are 3 threads about this going on now.
http://savageshooters.com/SavageForum/index.php/topic,30214.0.html

http://savageshooters.com/SavageForum/index.php/topic,30107.0.html

http://savageshooters.com/SavageForum/index.php/topic,29920.0.html

Curt