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Rifles, Reloading, Optics, Equipment
Gunsmithing
Pedersoli Sharps chamber pressures?
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<blockquote data-quote="shortgrass" data-source="post: 429641" data-attributes="member: 24284"><p>Interesting questions , Tom. I'm always interested in stuff like this. Ya' gotta' admit steel is better today, with fewer impurities, than ever before, even if it is made in 'lower wage' areas or places where modern technology has been put to use. I guess if you're ordering your steel in big enough quantities you can get the 'blend' you specify. I've done alot of color case hardening and alot of trying this and that to see what works and what doesn't. Much depends on the 'carbon rich media' you are using to 'pack' your parts in. As it's organic material (bone charcoal, wood charcoal) there are no set standards and there can be great variations from lot to lot. As much depends on the steel. Again, when you're buying in quantity, you can specify what you want and get it. As for the actual process, heck, even my oven has digital controls. When the originals were made they might not of even used a pyrometer and depended on the 'skill' of the operator. Low to medium carbon steels, with a carbon content of no more than .35% respond to the old fashioned methods of 'color case hardening' very well. Unfortunately, the only way I know of to find out how thick the 'case' is , is to cut through and measure it (destructive). The sample part can be put under a "Rockwell" tester for a hardness check but, there seems to be much disagreement as to the validity of that test on case hardening. I would tend to think the reciever on that Pedersoli would be perfectly safe with<em> standard</em> <em>factory </em>.45-70 loads whether loaded with black or smokeless powder. I don't think there's a major manufacturer today that will sanction the use of reloaded ammo in their firearms. Too many guys load 'dynamite'! Single shot black powder cartridge rifles, no belt, no Berger Bullets, no 20 M.O.A. rail,,,,,just paper patched lead.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 429641, member: 24284"] Interesting questions , Tom. I'm always interested in stuff like this. Ya' gotta' admit steel is better today, with fewer impurities, than ever before, even if it is made in 'lower wage' areas or places where modern technology has been put to use. I guess if you're ordering your steel in big enough quantities you can get the 'blend' you specify. I've done alot of color case hardening and alot of trying this and that to see what works and what doesn't. Much depends on the 'carbon rich media' you are using to 'pack' your parts in. As it's organic material (bone charcoal, wood charcoal) there are no set standards and there can be great variations from lot to lot. As much depends on the steel. Again, when you're buying in quantity, you can specify what you want and get it. As for the actual process, heck, even my oven has digital controls. When the originals were made they might not of even used a pyrometer and depended on the 'skill' of the operator. Low to medium carbon steels, with a carbon content of no more than .35% respond to the old fashioned methods of 'color case hardening' very well. Unfortunately, the only way I know of to find out how thick the 'case' is , is to cut through and measure it (destructive). The sample part can be put under a "Rockwell" tester for a hardness check but, there seems to be much disagreement as to the validity of that test on case hardening. I would tend to think the reciever on that Pedersoli would be perfectly safe with[I] standard[/I] [I]factory [/I].45-70 loads whether loaded with black or smokeless powder. I don't think there's a major manufacturer today that will sanction the use of reloaded ammo in their firearms. Too many guys load 'dynamite'! Single shot black powder cartridge rifles, no belt, no Berger Bullets, no 20 M.O.A. rail,,,,,just paper patched lead. [/QUOTE]
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Pedersoli Sharps chamber pressures?
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