What's the quickest easiest way How do I fix head space problems in an Enfied No4Mk1?

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S.B.
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What's the quickest easiest way How do I fix head space problems in an Enfied No4Mk1?

Post by S.B. »

Installing a longer bolt head? Please explain the different numbers of bolt heads? Where are these bolt heads marked with their size, all I see on mine are a "B" with an arrow stamped on the flat area?
Steve

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Re: What's the quickest easiest way How do I fix head space problems in an Enfied No4Mk1?

Post by 72 usmc »

Did you see this? I updated the missing photos, they are at the end.

viewtopic.php?f=16&t=347
be SURE TO READ THIS :arrow: https://www.enfield-rifles.com/no4-no5- ... c3518.html

https://www.enfield-rifles.com/no4-no5- ... c5019.html

Not as easy as one would think. You need the correct size and one that times into the bolt body. You need to measure each bolt head because the actual size differers, do not go by a number on the bolt head. It can take up to 4-5 different bolt heads till you find a perfect time in & fit. More factors I have observed. Then with some both heads, the threads just do not match, they do not screw into the bolt body, yet fit perfect in others?? If it's really bad then consider possible new bolts with a matched bolt head. Not all bolts fit the same, some many fail in one rifle and switch it to another it passes on a field gauge or better. Are you off at the low end say a wee bit more than.630 or the high end? Do you need longer than .638? :doh: :doh: :doh:

https://milsurpafterhours.com/bb/viewtopic.php?t=6576

If your rifle bolt matches and passes a Field gauge, leave it as found, and shoot it. If it fails a field gauge, then consider the cost factor at todays parts prices or you find an old guy at the range that still has a cigar box full of bolt heads or complete spare bolts. You will need to know the size in measurements you need, and you will have to carry the bolt body so if and when you ever find a correct measurement on spare for sale bolt head you can then try it for timing proper to purchase. How lucky do you feel? If it is a great rifle with nice stock and a great bore with all matching parts, well, :think: :think: maybe it's worth the expense and effort. If it is below average and mismatched with a redone stock--Most likely you got a nice parts rifle.

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To old to fight and to old to run, a Jar head will just shoot and be done with you.

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Re: What's the quickest easiest way How do I fix head space problems in an Enfied No4Mk1?

Post by S.B. »

Yes I read that but, still confuses me. Mine passes go amd field gauge but not the no go gauge, so I guess I'll just shoot it as is.
Steve

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Re: What's the quickest easiest way How do I fix head space problems in an Enfied No4Mk1?

Post by Bindi2 »

The American No go gauge is the M O D maximum gauge so you are OK.

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Re: What's the quickest easiest way How do I fix head space problems in an Enfied No4Mk1?

Post by 72 usmc »

Yes, it should be good to go. Your Enfield is fine for a surplus rifle. Suggestion, with the first shots look at the brass- is it greatly enlarged? Some Enfields have enlarged chambers even with good headspace. Look at the Primer, is it backed out of hammered real flat. I bet your primer will look normal. If you reload, save the fire formed, first fired, new brass cartridges and then neck size only. Mark those reloads for that rifle only. You should be fine. I bet the bolt stops with resistance at the half way point on a FIELD gauge.


Did you see this post: viewtopic.php?f=52&t=3508

https://www.enfield-rifles.com/brass-li ... c6436.html

https://www.youtube.com/watch?v=2EoXgHUxt1Q

http://www.303british.com/id28.html
To old to fight and to old to run, a Jar head will just shoot and be done with you.

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