Pressure loads for Damascus barrels

[Dean Romig]

Bruce, that .025” MWT only applies to the forward half of the tubes. The first half or rather the first 10” - 12” from the breech is equally, probably more, critical in barrel wall thickness as we should all know is where pressures are extreme. We’ve all seen the pressure curve charts and know the pressures begin to drop off drastically after exiting the chamber. Personally, I pay closer attention to the thickness at the juncture of the chamber and the beginning of the cone.






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[Bruce Hering]

Originally Posted by Dean Romig

Bruce, that .025” MWT only applies to the forward half of the tubes. The first half or rather the first 10” - 12” from the breech is equally, probably more, critical in barrel wall thickness as we should all know is where pressures are extreme. We’ve all seen the pressure curve charts and know the pressures begin to drop off drastically after exiting the chamber. Personally, I pay closer attention to the thickness at the juncture of the chamber and the beginning of the cone..

Wall thickness is great, with .130 in both barrels at the end of the chamber, .121 at the end of each forcing cone. The minimum wall thickness is .038 and .036, 5” from the muzzle....

I do not have access to DGJ since they stopped offering it at "book store" outlets. If someone could scan the article and and send it to me I would appreciate it.

Thanks

[Dean Romig]

Bruce, I'm not giving advice here but with wall thicknesses like those I would think you could shoot most off-the-shelf stuff except heavy turkey or waterfowl loads.

Originally Posted by Bruce Hering

Wall thickness is great, with .130 in both barrels at the end of the chamber, .121 at the end of each forcing cone. The minimum wall thickness is .038 and .036, 5” from the muzzle....

I do not have access to DGJ since they stopped offering it at "book store" outlets. If someone could scan the article and and send it to me I would appreciate it.

Thanks

[Cold Spring]

Bruce, the wall thicknesses cited here seem excessively thick at the front of chamber and forcing cone (.130/.121") and I ask how they were measured?

Originally Posted by Bruce Hering

I do not have access to DGJ since they stopped offering it at "book store" outlets. If someone could scan the article and and send it to me I would appreciate it.

Thanks

The DGJ is copyrighted and in effect you're asking someone to pirate the content for you. Not a big deal considering the society values of today but it’s still not right. DGJ will be delivered to your mailbox 4X per year for < 1/2 the current cost for a flat of shotgun shells. And even if it were available at a book store you'd have the added cost of gas and mileage depreciation. Just sayin.

[Bruce Hering]

Originally Posted by Frank Srebro

Bruce, the wall thicknesses cited here seem excessively thick at the front of chamber and forcing cone (.130/.121") and I ask how they were measured?



The DGJ is copyrighted and in effect you're asking someone to pirate the content for you. Not a big deal considering the society values of today but it’s still not right. DGJ will be delivered to your mailbox 4X per year for < 1/2 the current cost for a flat of shotgun shells. And even if it were available at a book store you'd have the added cost of gas and mileage depreciation. Just sayin.

The measurements were taken by Breck Gorman so I suspect they are correct. It is a #2 frame and barrels marked "4".

As to DGJ; Sorry about that. I guess my age has me thinking without thinking. Nuf said, I retract my request.