Your opinion on pressure

In 1914 the chambers of the Enfield rifles had to be reamed larger in diameter and longer in length to the shoulder of the chamber. This was due to an ammunition scandal and who was awarded contracts to make ammunition. Some of the ammunition was so poorly made it would not even chamber and why the chambers were reamed larger.
Sorce, The Lee-Enfield Rifle By Major E.G.B. Reynolds - 1960

Below a new Remington .303 British case in a Wilson case gauge. This case would drop in further into the gauge but the rim is holding it up.

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Below a fired case in the Wilson gauge and the case is resting on its shoulder. This shows how much further forward the chambers shoulder was vs a SAAMI .303 British chamber.

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Below on the left a new unfired Winchester .303 British case, in the center a once fired Winchester case. And on the right, a Winchester case that was full length resized twice and had a case head separation.

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Bottom line, the WWI British Enfield rifles were the only country that had to have their chambers reamed larger, and this was due to poorly made ammunition and not a myth.
 
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In 1914 the chambers of the Enfield rifles had to be reamed larger in diameter and longer in length to the shoulder of the chamber. This was due to an ammunition scandal and who was awarded contracts to make ammunition. Some of the ammunition was so poorly made it would not even chamber and why the chambers were reamed larger... Bottom line, the WWI Enfield rifles were the only country that had to have their chambers reamed larger, and this was due to poorly made ammunition.

And the Brits often foisted that crappy ammunition off on the colonials i.e. Canadians armed with Ross rifles. Which really helped with the development of the truism that the Ross Rifle was unsuitable for wartime use. Little mention that not a few other makes and models of rifles had a problem reliably chambering crap ammunition.

In the book "A Rifleman Went To War", the American author speaks of avoiding some British ball ammunition like the plague, while seeking out and redistributing (i.e. stealing) other ammunition for sniping purposes while serving with the Canadians.

Edited to add: excellent pictorial explanation of the chamber geometery at work here, Ed - as usual.
 
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Further to the earlier suggestion that the OP consider buying some high quality Prvi Partizan unsized brass to start out with.

A blast from the past, 10+ years ago when the same bag of PPU cost $37 USD - roughly the same in Canadian dollars today as it is on sale:

Prvi Partizan cases are .010 thicker and heavier in the base web area than ANY other brand of .303 case.

Fired Prvi and HXP cases below. Prvi Partizan on the left, Greek HXP on the right both once fired cases in the same Enfield. Prvi Partizan brass is made like the more robustly made American military cases are.

The Prvi cases will change your outlook on headspace compared to flimsy American made cases.

https://www.milsurps.com/images/imported/2009/04/privihxp-1.jpg
 
Yes these cases were fired in my 1943 No.4 Enfield rifle and my photo was posted at milsurps.com/ where you copied it. And you even remembered what I said in my post about the cases. It would be nice if I could use and post my own photos and information without other people using them. And if you noticed bigedp51 posted them at milsurps.com/and bigedp51 is writing this posting. And it makes me wonder why you posted it knowing I also post here.

At one time I had the largest Enfield book and manual sticky in two Enfield forums. Then Steve Redgwell from http://www.303british.com/ contacted these two forums and told them I was breaking Copywrite laws and I lost both my Enfield stickys. And strangely all the books and manuals from my sticky ended up at milsurps.com/ and that website isn't breaking any copyright laws. It's amazing what some websites will do to make money and I want to thank Steve Redgwell for being such a nice guy. People donated reloading information to Steve's website and he turned around put the information in a book and now sells it for $26.99 + Postage.

So Rick this is a sore subject, so take your own photos and get your own information. That way I can post my own photos and information here without any problems. I have been in Enfield forums posting my own photos and been accused of using someone else's photos because someone else was posting them.

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Below the RCBS gauge I used to measure case wall thickness on the .303 British cases that I posted the case wall thickness on.

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Yes these cases were fired in my 1943 No.4 Enfield rifle and my photo was posted at milsurps.com/ where you copied it. And you even remembered what I said in my post about the cases. It would be nice if I could use and post my own photos and information without other people using them. And if you noticed bigedp51 posted them at milsurps.com/and bigedp51 is writing this posting.

Is that right, eh? You're telling us that bigedp51 posted them at milsurps.com? Well, let's just look at the tape and see if your complaint is true, shall we:

That post is from over a decade ago, from a username Ed Norton on the Milsurps forum... A guy now banned BTW because he was such a quarrelsome, easily offended #### that it was easier to ban him than put up with his endless shyte disturbing. Here ya' go, Sunshine; screen cap of the post. Take a really, REALLY good look at the username. It ain't bigedp51 as the username for the post. In fact, bigedp51 doesn't even appear in the users who responded to that thread.

https://www.milsurps.com/showthread.php?t=14890
[url=https://servimg.com/view/14116201/820][/URL]


What's even more telling is there isn't even a record of there ever being a "bigedp51" as a user over in Milsurps. I wasted ten seconds of my life doing a member search to see if a member there named bigedp51 existed to have a complaint

So why don't you try getting your own information and photos. I do not want anyone thinking I was copying your work when I post "MY" photos here. You even copied word for word what I said in another posting.

  1. Is that your subtle way of telling us that you're the Ed Norton banned nearly a decade ago?
  2. And that, almost ten years later, we're supposed to link a post made by the infamous Ed Norton ten years ago with you, here, now?
But while we're dealing with your angst that I apparently didn't give sufficient attribution to Ed Norton for a post that's over a decade old on another forum (or to a nonexistent user bigedp51 on that same forum), there is this troubling post of yours the same day as my post that is causing you so much angst:

https://www.canadiangunnutz.com/forum/showthread.php/2092458-Your-opinion-on-pressure?p=17598443&viewfull=1#post17598443
[url=https://servimg.com/view/14116201/818][/URL]

Beautiful little explanatory graphic you put up there, bigedp51! Well done! That must have taken you quite a bit of work to create!

However, it looks practically IDENTICAL to another post, also well over a decade old, also over on the Milsurps forum.

But NOT posted by the notorious and now banned Ed Norton NOR bigedp51. No, it looks like a carbon copy of a lengthy article on Lee Enfield headspace written by username parashooter. Are you parashooter as well over there, bigedp51? If you are, that is not only a fine collection of graphics that you created over there and now use here as well, but very informative as well.

https://www.milsurps.com/content.php?r=296-Headspace-101-for-.303-s


Hmmmmmm... except for your text above the graphic, looks like a plain ol' cut 'n paste job of parashooter's post. BTW, I'm username Rick here, Milsurps... pretty much all the forums I visit.

So again Rick I would like to use my photos and information here and not let people think you did all the work measuring cases.

Well bigedp51, I'm a little confused. Are you not only Ed Norton over on the Milsurps forum (and we're supposed to know that a decade after you were banned) - but you also go by the username parashooter over there as well, and you're still a member?

So all those graphics over on Milsurps are actually your work you posted over a decade ago - under two different usernames?

Or are you just one of those usernames over there - different than bigedp51 here - but you'd like to let people think you also did the work of creating either the picture or the dynamic giff under the other username that wasn't you over there?

Can't have rules for other people that don't apply to you bigedp51... it makes you look like a Democrat.

If I hurt your feelings and you are in fact the banned and unlamented Ed Norton over on Milsurps, you have my apology, and I'll keep that in mind from this point on.

But if you aren't also the user Parashooter on Milsurps, after you've been using his graphics even casually to explain something without giving attribution to him... then you have some 'splaining and apologizing of your own to do.
 
Very simple Rick, "STOP" posting my photos and material in this forum. "YOU" know it's not "YOUR" photo Rick so stop throwing tantrums when you are called out about it.

I do not understand why you are doing this or what your motives are. But you need to get a life and get your own material, and you are just making yourself look bad.

There are far too many people here who have seen me posting this material for years. And below are my fingers in my photos. And I measured the Winchester and Prvi Partizan .303 British cases long ago and posted the information. And you never measured the rim thickness, base diameter or case wall thickness or have any claim to this information and photo.

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And again Rick you did not take the photo below and it's not yours to post here and you know it. All you had to do is PM me and ask if I was Ed Horton and you would have known it was my material. I just do not understand what is going on inside your head or why you are doing this on a photo that is not yours.

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Redding doesn't groove their shell holders, and mine are mostly a mix of both RCBS and Redding. The groove depths over different runs aren't terribly consistent, so it may or may not be useful for providing the relief necessary for an extruded primer.

A small plastic or rubber faced hammer will reseat the fired primers to fit in your shell holder.
 
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