The Accurate Reloading Forums
Bolt Jump

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https://forums.accuratereloading.com/eve/forums/a/tpc/f/9411043/m/5071009432

30 August 2017, 02:24
lindy2
Bolt Jump
I'm sure it has been asked and answered on here before but I can't find it.

Bolt jump bugs the shit out of me. Mostly on mauser and Winchester rifles.

What can a bubba do to fix it.
30 August 2017, 02:44
ramrod340
Jump is often caused by the relief notch being cut too deep allowing over rotation if my mind is working right.

Dwayne talks about it.
http://www.customgunandrifle.c...ng-tips/bolt-welding


As usual just my $.02
Paul K
30 August 2017, 04:16
dpcd
It's not an issue; just less than perfect fitting.
31 August 2017, 18:39
gwahir
Bolt jump happens only when dry firing. When a cartridge is fired the primer stops the forward movement of the striker system well before the cocking piece contacts the cocking cam on the bolt: no jump. Try it with a deadened primer.
31 August 2017, 19:34
Duane Wiebe (CG&R)
I have come to believe that a LITTLE bolt jump assures that all parts have found "home". A fit that's a little too snug can slow down the firing pin given some ice, dirt, etc.