Here is what i sent Wayne in a private message.
I have grown very fond of this Gentleman over the course of the last couple of years!
He is inquisitive and always wanting to build a better mouse trap.
Reminds me of some one i know well!
Why dont you just call one of us thats done it a thousand times and let us tell you what works and what doesnt.
The reason for the 465 is and was so you could get away with 6 shots in a 1.780 Od Redhawk Cylinder. The bolt notch is also further from the bore on a redhawk. 475 + p sounds great but ive done it and all you do is flatten primers and blow out the pockets so that it is unreloadable after a couple of rounds.
I have purposely Blown up Cylinders to see what they will take. All materials.
1.800 is the ultimate od but it will require some touchy cutting and you really need to block that bolt because the floor gets mighty thin.
John Linebaugh prefered 1.790 but i started in 1986 with the 1.800 and i just found ways to make it work. I like round numbers hahaha.
Make note that a lot of this is going to depend on the main frame and its allowable dimentions because they are all over the place since 1973.
And the new stuff im seeing come out of the factory is plumb scary. I dont see how most of these are making it into the plastic box.
I can send you a drawing of all the dimentions to follow and give you the best option on tooling. If you have worked with 465 before, well you already know what you need to.
Just take it slow and listen to that cut. when she starts a screaming,,,,,,, STOP. Hahaha.
six shot 475 will put you at .042 thou between chambers and all most .012 from bolt notch to chamber. I DO NOT SUGGEST IT.!!!!!!!!!!!!!!!!!!!!!
GO 5 SHOT IF YOU VALUE YOUR HANDS AND ANYONE WHO WOULD STAND NEXT TO YOU.
you can add od and gain bolt slot to chamber but you cant get arouund the .546 center to center.
357 on a 7 shooter is about max. 41 chambers will be just like the .475. TO CLOSE FOR COMFORT.
R call me
i will tell ya what ever you wanna know