I have one in .45 Colt. Cool little rifle and fun to shoot, but the small capacity tubular magazine really limits it's use in CAS along with the actions required to fire: 1/2 cock, work the action, full cock, trigger. Then single load the balance the stage calls for LOL
Speedy lever action shooters, used to 1860's, '66's and 73's are driven nuts.
I found my "normal" Trail Boss loads, (250gr bullet -5.5 Gr TB) didn't eject until I reduced the charges to 4.0 Gr TB
Your mileage may differ.