Shot my 1890 A. Hartman .577 2.75" express today for the first time.

It's still in one piece. Probably this first time in 100 years.

I duplicated CaptCurl's start out load: 65gr IMR4198, three felt wads and 560 paper patched round nose.

It shot apart with the right bbl a bit higher.

I'll add one grain at a time until it comes together, or 74gr max.

This rifle has a 100 yd fixed sight so it will naturally shoot about 3" high.

Stay tuned.