I have been loving shooting this little carbine, in spite of the frustrations - it's been giving me fits getting the 3X short Malcolm scope stuck to it (literally). But it's a kick in the pants to shoot.
22" barrel and with the scope it weighs in a 5-1/2 lbs.
Leatherwood hasn't yet made an exact scope mount for the Remingtons, but I really liked the idea of using the exiting dovetails, so I started with a mount set they make for an 1885
First trick was getting the height right on the receiver mount.
In spite the fact my gunsmith said he bore-sighted it, first time out with cowboy loads, couldn't quite get enough elevation to hit the paper at 50 yds. - back to the drawing board.
Tried a .425 mount (the photo above), and it ended up being too tall. This time I was at 100-yd range, and I could dial it down to the top of the paper. I actually shot some windage adjustments aiming at the bottom of the paper,
and noticed a bugaboo - the scope slid a little bit in the compression ring locking collar which holds the scope tube at the front mount - the scope was sliding forward, driven by the recoil. So I tightened the screw. One reason I bought this gun was to shoot big loads - this time out I had been shooting BVAC reloads, 158-gr. 1300 fps, and threw in a couple of Buffalo Bore 180-gr, rated at the same velocity. I noticed the bigger loads hammered the scope a little faster.
A .325 receiver mount is probably perfect for this application, but I had .225 that came with the scope, a .425 I purchased, and a .275 that came with the 1885 mount set. I made a .030 steel shim and installed it under the .275 mount.
It put me on the paper, into the red, and then started walking everywhere.
I had shot about 20 rounds of BVAC 180-gr 1200-fps. I looked down, and the scope had traveled so far forward the eyepiece was into the rear mount, which is where my calibrations had gone. To top it off, the rear mount base was loose.
Back to the drawing board. First thing, I contacted Leatherwood, because I had horsed on the locking collar screw so many times, the screw slot was opening up. They kindly send me a pair.
I remounted everything with Locktite 242, and one extra addition - I used Locktite 609 between the scope tube and the locking collar.
Nice thing about this carbine is you can bore-sight at the range - open up the block and look down the range, which is where I started yesterday. 2nd shot was on the paper. As I was making my scope calibrations, I noticed my pairs were grouping very nicely - an inch or better at 100 yds.
Again, I was shooting BVAC realoads, 180-gr JHP 1200 fps.
My last 6 shots were at the 1" squares on each side of the paper, and I put 3 shots in each one - very happy with the result. I actually plan to dial this down to 80 yds, which is a flatter range for the .357, but again, I was very happy with yesterday's result. Sorry, no paper to show you (this guy doesn't shut down the range to retrieve paper)
The Locite solved it - everything was rock solid.
I want one of those so bad I can taste it. 
