If it is to be a "range gun", why would you want to exceed the SAMMI pressure limits for the .45 Colt?
For certain firearms the cartridge can be loaded at much higher pressures and be safe and reload data is available through most powder makers like Hodgdon and Western. Some consider them +P and some "high pressure" becaue they are written that way. FE:
http://www.hodgdonreloading.com/data/pistol Select 45 colt Ruger Freedom arms and TC only.
Since I reload I plan on a few of the "High Pressure" loads for testing and fun.
Who is going to be impressed with the increased "bang" when you shoot it?
I am not there to impress anyone. Just for fun. No different than a 44 Mag etc.
Why don't you stick with conventional .45 Colt loads and just concentrate on hitting what you are aiming at?
I will shoot mostly standard loads and I have no problem hitting targets. Been doing it a while and it comes natural from one gun to another. I don't do competition either because I don't have a need to compete. I have shot against a few buddies that were really good for fun and enjoyed it. They even almost convinced (really talked me into) shooting competition. Done pretty good and don't like to brag, just had fun the old fashioned way with a little good sportsmanship. loser bought the beer. I wasn't always buying beer...
and for me that is good enough.
Great questions BTW.
Ruger Blackhawk is one of my favorite firearms , I prefer the .357 or .44 Mags . For $100-$150 over the $580 that you may find a good DA S&W or Ruger .
If a cylinder can be had at a fair price it can go on the back burner and pick it up later i might consider it. But still has to handle enough pressure for either a "high pressure 45 colt or a cylinder that can be converted to 460 Rowland safely. Any particular model suggestions (I am pretty sure the K frame at least?).
But, he said he wanted the convenience of dual cylinders, and, "...if it has the same durability and an extra cylinder." ...I doubt he is going to find such a gun at + 100-150, or at any price.
True from what I am gathering. May be the end result too. Just wish it was SA/DA.
Think I made my decision a little harder in some ways by wanting the DA/SA. Otherwise I would go with the Blackhawk and be done with it (as already suggested).
I have some other reasoning behind wanting the Ruger that can't be denied. To be honest I had plans for a 460 Rowland platform for some time now. I found out that Clark's Customs does reaming on 45acp cylinders in the Ruger Blackhawk for the 460 conversion. Then I started shopping the Ruger Blackhawk's and found the 45 colt with conversion barrel. Naturally speaking I was thinking two calibers with one gun and have the platform I wanted.
Well the thought hit me, why am i paying extra money for the 460 Rowland when I can get nearly the same from the "high pressure" 45 colt which the Ruger can handle and have three different calibers (not technically) with the soft shooting 45 colt, 45acp and the stronger "high Pressure" 45 colt. Only problem was the SA vs a more desired (personally speaking) SA/DA revolver.
With a DA/SA I can have a (better suited to me) gun that can be used for HD as well as the range. Don't get me wrong I have a good SD gun that doubles as HD. Without going into more long and drawn out details there will be times when it would be nice to leave it home for someone else.