Good question. Answer is a bit apples and oranges and a little more complex. Ask yourself,
- Is it the general "cowboy" look and feel you"re after, or literal "Colt" translation? If former, the Vaquero--or better yet the more Colt-sized New Vaquero if you don't need to shoot super hot loads, plus the reasons Shadi stated well. Since there is the newer/current smaller "mid frame" New Vaquero, in addition to the discontinued old, large-frame Vaquero, you don't have choose the non Rugers like the Cimarron *just* to get the "correct" Colt size experience--like you did 8-10+ years ago.
- Is it (especially) appealing to have a rugged gun reminiscent of old west but which can also safely shoot six, If so, the Ruger may be for you.
- Action feel. The Cimarron P will give you a "closer to Colt" feel including the famous four-click 'snick-snick' hammer action.
- The Cimarron (if the blued model) has the better color case hardened-like finish versus the old/large frame Vaquero and early New Vaqueros. The current/recent (several years') NVs are just blued. If that's fine with you, not an issue of course.
- Need for hot/heavy hunting loads (.45)? - original large frame Vaquero
- Confidence level? Depends on the use(s) intended. I've got both stated in the OP's inquiry, but in .44 Special (as well as .44 Mag "old" Vaq and .357 also in NV). The Cimarron is an excellent piece, fun to shoot and handle (I do not CAS) and gets "fondled" more. Really does give that Colt look and feel. As a "working gun, hunting/camping or trekking into the wilderness? - it's the Ruger. Were I to have to keep just one, a Ruger--choosing practical use over affection, in a sense.
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