I am looking into buying a Cimmeron 1876 Rifle.They look awesome in pictures have not seen one in person.I like it cause Teddy roosevelt also used this gun.What caliber is good in this gun?

From the ones I have seen they are very nicely finished and have heard good reports about them.
Cimmeron products are a bit better finished than most of the replicas that I have encountered. They are a large frame rifle and quite impressive to hold. Am told they are excellent for off hand shooting, a bit on the muzzle heavy side, but many prefer that. Believe the one I looked at was in 45-60 caliber.

I have a 50/95 Stoeger Uberti ! Make my own brass from 348 winchester , 35 grains 5744 340 grain Lyman bullet , I had to do many alterations & repairs to this fine gun when I first received it , as for overall opinion ! it kicks like a mule ,shoots straight ,would drop a T-Rex ! I will never sell it !

I have a Chaparral in 45-75. I also have an original, made by Winchester, dating from the mid 1880s. My concern with the reproductions concerned "original feel" when cycling the gun quickly.

I have to tell you, the Chaparral has impressed me. I recently bought a hundreds pieces of fairly expensive brass so I can shoot more often!