Just did a search on that SxS pistol and the ROT of 35" would be a turn-off for me. Way too slow. The handgun ROT listed for the .45 Colt is 16". WW mags are usually 18" to 20" iirc.
In the rifles, a 38" ROT worked for me in .45 Colt, but I was running 260gr. bullets at 1,900fps and 300's - 340gr. at 1,582fps and 1,745fps.
I see the barrel length is listed as 10".
They'd have to be lowed to the nuts, I think, in order to shoot with any accuracy - ie: 300gr. at 1,500fps.
That would kick a bit, after all, it is .44 Magnum ballistics equivalence.
My rifle also had a 16" bl. & it "jumped" pretty good for a 5 1/2 pound gun.
Of course, being a SxS, there's the regulation "problem".
https://www.davide-pedersoli.com/en/product/pedersoli-howdah-pistol-45410