All this headspace information

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Originally Posted by S-A-M3

bigdaddy, ignore what ireload2 says just another techogeek trying to promote himself

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Why do you day that?

I used to try discussing the headspace issue here but gave up in the face of total ignorance from those who had not the foggiest idea about what headspace is or how it can affect anything.

I read that rimmed cartridges can't have excess headspace, that Lee-Enfields are immune from headspace problems which apply only to those nasty Mausers, that any and all headspace problems can be eliminated by neck sizing cases, that L-E chambers are deeper so headspace is not an issue, etc., etc. All blithering nonsense, but it seems to be what the L-E crowd believes, and nothing will change that.

By the way, a headspace check on a used rifle requires only one gauge, a Field Reject gauge. GO and NO GO gauges are not needed, nor are shims, pieces of cardboard, feeler gauges, bats' wings, and magic incantations.

Jim

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Originally Posted by Peter Laidler

As for 7.62mm CHS gauges, in Britain, we had MANY variables. BUT, so far as this forum is concerned, we only had ONE set for bolt action rifles..., from the L8 series, right up to the L81 and that is 1.628 GO and 1.635 NO-GO. The other sizes relate to machine guns where heat, expansion and locking/unlocking methods all come into play.

On the basis that these figures are correct for British made bolt action 7.62mm rifles, then I see no reason why these figures should not be absolutely correct for Indian made Enfield rifles.

The problem is anyone can make a 7.62mm gauge and call it, well, whatever they like! Ours are all calibrated from a diameter around the neck to the base. I can check the calibration of your SAAMI gauges against ours

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If you are that concerned about accuracy of a gauge you should never "calibrate" one head space gauge vs another. Rather the gauge should be check with the appropriate measuring equipment accurate to 10% of the required tolerance specified on the gauge drawing.

Good grief!

But I DO have the calibration gear................................ But OUR gauges don't equate to some of YOUR gauges and YOUR Enfields are gauged to OUR inspection standards

According to the folks at Clymer, either .303 British or .30-40 Krag gauges will work to check your No. 4. They're interchangable.

We're getting into VERY muddy water here.............

If you got a Ford car, fit Ford parts is what I say. But maybe that's because I'm very inexperienced with these things....................

Gentlemen,

This thread contains a number of unnecessary personal jabs. Please refrain from such behavior - I don't need any extra work at this time. :)

Personally, I´d never trust myself to do any work on a rifle that might effect its safety or integrity (quite apart from it being illegal here in Germany). So I had my .308 conversion LE No. 5 checked by an authorised gunsmith and proofed. That´s what they´re there for.

It would be nice if Clymer provided headspace gages to BRITISH MILITARY SPECS instead of SAMMI specs.

What are the odds that you would find a .303 rifle set up to SAMMI specifications rather than British? How many current sporting rifles are made in .303???????

As far as I am concerned, SAMMI gages are a waste of time in .303 and the person who was thinking 30-40 Krag rim thickness is the same as British .303
must have been smoking funny cigarettes!