@Versifier..... this is why I usally stay away from these gunboards.
Quote:
Jack made that statement in the days before we could actually measure chamber pressures as opposed to estimating them with the copper crusher method. Nowadays we know from real world measurements that when your primer pockets loosen up you have gone beyond safe
Sorry, IMHO, this statement makes absolutely no sense... whatsoever.
Quote:
Nowadays we know from real world measurements that when your primer pockets loosen up you have gone beyond safe
Isn't that what O'Connor used for pressure signs.... in his artical?
Quote:
I shoot some wildcats and I use a lot of surplus powders, many of them have little or no data to go with them,
Now this is what Newbies shouldn't try at home!!!
Quote:
Ackley's and Hatcher's experiments taught us a lot, but they did not address the issue of the cumulative effect of firing many really hot loads over time and what it does to the bolt and the bearing surfaces that take the brunt of the forces involved.
His testing prooved that how much more these actions could take, so your statement is, well, empty.
Quote:
The understanding of metalurgy and the behavior of various steels under stress was poorly understood a century ago, and the alloying was sometimes primitive and inconsistant from batch to batch.
Oh really? So how in the world did the T99 Arisaka, as primitive as it was, according to you, was one that took the most beating and survived? LOL
Quote:
Case failures due to brittle poorly annealed brass were much more common back then and it was not unusual to get a faceful of hot gasses.
The artical mentioned proof pressure testing, so this would explain the brass failure.... and experimentation of loads in addition...
Quote:
Check out the differences between the bolt of your Argie m95 and that of the m98
I have a 1909 Argentine.... which had/has a fine reputation of one of the strongest actions at one time.
Quote:
With modern brass the m95 is a fine and versatile action whose only practical limit for most common cartridges is its short length
Nothing above the 7mm mauser pressures...
Quote:
I have one that I built a custom .30BR sporter on and I like it a lot.
Looks to me that the .30BR is comparable to the 7.62x39...as far as pressure.