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The principles no doubt remain the same but maybe the machinery has moved forward.
Taken from "Machining The Lee-Enfield Barrel (May 25th 1916) - "Screwing & Chambering"
Sorry - you might have to turn your monitor onto its side !!!
https://www.milsurps.com/images/impo...mbers001-1.jpg
That's a good point to ponder JM............. Just HOW do you get an out of round chamber. Never thought of it before. A case of sometimes you don't see the obvious - or the wood for the trees! But you do see eccentric bores and I showed a photo of a sectioned Bren barrel on here some time ago that was noticeably eccentric.
Good point JM
https://www.milsurps.com/images/impo...94414926-1.jpg
This Remington .303 case has the typical one-sided bulge and misaligned case of the SAAMI spec case/Enfield spec chamber miscegenation. (Hope it shows up in the photo.)
Studies of the Homomoronus Northamericanii show that this kind of strong visual cue will short out synaptic receptors and render the subject incapable of even the simplest mental activity---such as sit-com viewing.
At the same time typing skills fall as opinionation rises, leading to a state of mind best explained by a Geologist.
Education, at this point, is impossible.
-----krinko
PS. This lopsided beauty was actually fired in a Martini Enfield, which proves it isn't the extractor pushing the case to one side that makes the one sided bulge.
-----k.
Mmmm, Large diameter chamber, non uniform case wall thickness, and in this case, possible breech block misalignment or off square breech face...Mean old mister gravity will keep a cartridge off center in a large chamber as well as extractor pressure!Quote:
Originally Posted by krinko
Sorry, but I thought everyone knew about the spec differences, like these---
Royal Laboratories, 1944 Typical
https://www.milsurps.com/images/impo...94415389-1.jpg
Remington-Peters Typical
https://www.milsurps.com/images/impo...94415388-1.jpg
Winchester-Western Typical
https://www.milsurps.com/images/impo...94415387-1.jpg
There is nothing wrong with my M-E, which is a very nice 1899 conversion, formerly the property of the ACG and very well maintained----Norma, PPU, PMP and HXP do not deform in this rifle.
For further fun with calipers, try US made 7x57 against European 7x57.
-----krinko
PS. The caliper measures .455" when run at the bulge in the fired Remington case, so the poor brass ie trying to conform to Brit standard. I don't feel like starting the camera again so no photo.
-----k.
Thanks for the reminder! I was just putting down the first things that popped into the tiny brainpan, and in a hurry! I got used to Mr Horton handling the ammo stuff...in his own gentle way.
I think the o-ring trick solves most of these problems, but refresher courses seem to be required all too often.
This explains my funny looking cases. I even cut one up to see if it was about to separate but internally looked okay. S&B cases loaded about 5 times... given everyone else's experience I don't expect much more from them.
Is Ed still with us ???Quote:
Originally Posted by jmoore
Danny
No, but he is happy and well pursuing similar interests at the range.Quote:
Originally Posted by Danhar1960
Brad.
Yes, he's here every day viewing and enjoying the excellent forum content posted by so many of you, except he no longer has to endure the resultant stresses from posting ....Quote:
Originally Posted by Danhar1960
I do miss his more productive posts, but, I think it has worked out well for Ed and the moderation staff here, as compared to the alternatives employed by the ownership of many other sites. :thup:
Regards,
Doug