Install Old Ruger Bisley Vaquero trigger on Old Ruger Vaquero

Today I shot my Ruger (regular) Old Vaquero with some mild 44 magnum loads but noticed a sharp edge on the trigger that bothered me a bit. I do not have that problem with the trigger of my Ruger Old Bisley Vaquero so I thought a Bisley trigger would be an relatively easy switch and an improvement to my regular Old Vaquero revolver.
I have a friend that can do the work but I need to know if what I want to do is possible without any other modifications. I have been told that switching the trigger cannot be done without switching the hammer.
Anyone with experience please help.

BobWright said:

"Old" model Bisley? I'm not sure there were any.

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Hello Bob: I am not qualified to make modifications like what you are planning. If I can't remedy the problem by simply removing and dropping in a replacement trigger I prefer to leave it alone.
The Old Bisley Vaquero is a larger, heavier & stronger gun than the new model. The Old model Bisley could be chambered in 44 Magnum and I believe the 45 Colt could also handle hotter 45 Colt loads. New Bisley Vaquero is a smaller framed gun closer in dimensions, weight & feel to the Colt SA Army and not is strong enough to handle 44 Magnum.

jak67429 said:

Why not just smooth out the sharp edge of the existing trigger?

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The existing trigger on the standard model Vaquero has sharp edges but it is also very narrow. Smoothing out the edges might work but there isn't a lot of material to work with. What I want to do is switch it a wider, smooth edged trigger that fits my gun mechanism without modification.

Perhaps what I am looking for is available as an after market part.