If it means you'll be able to use the rifle to hunt....
make a good clean shot.......why not ?
But....to keep it 'in charactor' I'd stick with the
straight tube with 20mm bell...such as a Leo 1-4...or
many others...I like the Weaver 1-3x20..Japan mfg...good clear
glass...under $200....just use good rings..your CB 1895 is a
Thumper on both ends...here's my 1894 CB 20" 45 Colt w/Weaver 1-3x20