Any cure for bolt lift?

[Edward Horton]

If you store your rifle with the bolt closed you are putting the extractor spring under load and over time this will weaken this spring. (more bolt jump)

If the firing spring becomes weak you can have more bolt jump.

If the firing pin is not adjusted properly you could have more bolt jump.

If the *bolt head timing is not set properly you can have more bolt jump.
(*When the bolt head contacts the collar on the firing pin as you screw the bolt head closed.)

How well used and polished the bolt lugs and bolt lug recesses are can affect bolt jump.
(Are they slicker than snot on a door knob) What type super slick oil did you oil your bolt with?

The list goes on, headspace, bolt head over rotation, numerous worn parts, the phase of the moon and a spastic trigger finger could effect bolt jump.

Many things can effect bolt jump, the secret to bolt jump is to properly maintain your Enfield Rifle to the standards in the manuals and then don’t worry about it any more.

I will say this one more time, the two most used and abused springs on the Enfield rifle are the extractor spring and firing pin spring. I have tested thousands of aircraft hydraulic pump springs during pump overhauls and on the Enfield rifle when it comes to these two springs “when in doubt, throw them out” I replace these springs on my shooter Enfield’s with new ones.

Know thy rifle, and don’t listen to wild rumors.

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[5thBatt]

I will say this one more time, the two most used and abused springs on the Enfield Rifle are the extractor spring and firing pin spring. I have tested thousands of aircraft hydraulic pump springs during pump overhauls and on the Enfield rifle when it comes to these two springs “when in doubt, throw them out” I replace these springs on my shooter Enfield’s with new ones.

I may not know much about aircraft, but i do know its airflow over the wings that generate "lift", not the springs in hydraulic pumps

I hear what you are saying Ed but the main cause seems to be the shock of impact from metal on metal causing the bolt handle to "lift" jump would be a better word.

I may be wrong, but you are not making any attempt to explain why the "lift" is largely reduced on all & eliminated on some rifles when the contact between the handle & receiver is eliminated.

[Edward Horton]

5th Batt

You are right I have not answered “why the lift is largely reduced on all & eliminated on some rifles when the contact between the handle & receiver is eliminated.”

Now I will tell you “why” I didn’t answer your question, the Enfield bolt has two positions when cycling the bolt “Fully Opened” and “Fully Closed”, the bolt does NOT have a partially closed position, a almost closed position or a almost partially closed on a piece of paper position.

Now I have a question for you, how many people have you seen when they are shooting their Enfield reach out and partially open their bolt before they pull the trigger?

If you want a real answer to your question there is no such thing as bolt jump, but some Enfield’s have had the Snoxall speed cocking modification done to them.

Now STOP worrying about bolt jump and worrying about something real like swine flu….

[Edward Horton]

To the Moderators

I’m sorry but this fairy tale needed a funny ending………

[Alfred]

If you want a real answer to your question there is no such thing as bolt jump,

Yet it exists just the same.
Despite yourself you have contributed at least one bit of useful information during your ongoing efforts to kill the thread.

I’m sorry but this fairy tale needed a funny ending………

Since your fairy tale has ended we can hope that was your exit.
Though if you can think of anything useful theres no reason you shouldn't swallow your pride and return long enough to post it.


I think we can consider the magnitude of bolt lift as a "tell" to alert the user or inspector that some things need to be examined closely and attended to.
Much like the position of the operating handle of a jammed Lewisgun could alert the gunner to the most likely causes of the jam and the proper method of dealing with it.

I figure that for my rifle a more or less permanent fix will be to obtain a new condition replacement bolthead and fit it carefully.

I just cleaned the wax from the receiver and bolt and oiled it. There was only a hint of bolt lift. A thicker lube is in order, but the other steps taken have at least temporarily cured the problem.

[Edward Horton]

Alfred, AKA GunnerSam, AKA Temperflash

Please note my last two posts were addressed to the moderators and 5th Batt and NOT to you.

BUT while you are here, under how many different names and how many forums do you have to ask the same question and beat the same subject to death especially when the first reply from Thunderbox answered the question completely.

The shame of it is you knew what the responses were going to be before you posted your question, therefore your question was pointless to begin with.

[Edward Horton]

The moderators want us to get off this topic so lets talk about Mosin bolt jump.