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madcratebuilder · July 10, 2010, 05:43 AM

I disagree.

You really need to talk to the cylinder manufacturer.

R&D recommends..

"These cartridge converters are designed to convert your reproduction percussion revolvers to fire Black Powder Cartridge & Cowboy ammunition"

"Attention!
This conversion cylinder is for BLACK POWDER cartridges or black powder equivalent cartridges (also called Cowboy Ammunition) on a steel frame ONLY. Attempting to use modern ammunition will create a dangerous condition that can result in injury or death."

From Kirst.

"All Kirst Cartridge Konverters™ are precision CNC machined in the USA from 4140 Steel and heat-treated. The cartridge conversions are rated "For Black Powder or equivalent loads only," which includes the current Cowboy Loads on the market."

A conversion cylinder in a open top may cause frame cracking at the trigger and bolt screw holes. This was a problem with the originals using black powder only.

Pushing a 250/255gr at about 900/1000 fps is a pretty stout load. I would not do it in a conversion cylinder.

July 10, 2010, 05:43 AM	#6
madcratebuilder Senior Member Join Date: November 2, 2007 Location: Northern Orygun Posts: 4,923	I disagree. You really need to talk to the cylinder manufacturer. R&D recommends.. "These cartridge converters are designed to convert your reproduction percussion revolvers to fire *Black Powder Cartridge & Cowboy ammunition"* "Attention! This conversion cylinder is for *BLACK POWDER cartridges or black powder equivalent cartridges* (also called Cowboy Ammunition) on a steel frame ONLY. Attempting to use modern ammunition will create a dangerous condition that can result in injury or death." From Kirst. "All Kirst Cartridge Konverters™ are precision CNC machined in the USA from 4140 Steel and heat-treated. The cartridge conversions are rated *"For Black Powder or equivalent loads only,"* which includes the current Cowboy Loads on the market." A conversion cylinder in a open top may cause frame cracking at the trigger and bolt screw holes. This was a problem with the originals using black powder only. Pushing a 250/255gr at about 900/1000 fps is a pretty stout load. I would not do it in a conversion cylinder.