Bought one of these years ago, but never shot it. No ammo
Fast forward to a post by "Gunfreak25" about making brass from 45-90 and a further bit about making it from 300 win mag brass. Got plenty of 300 win mag brass from our range, but no 45-90 (so I thought). Made a few cases but really not enough rim to extract, I thought.
Getting ready to go to sleep, it suddenly dawned on me that I DID have some 45-90 brass, so next morning dug it up and proceeded to trim and size to fit in the gun, headspacing on the shoulder.
Next problem, bullets. I thought I had a mold, but couldn't find it. Thought about sizing down some 45 boolits, but no .446 size die. Hated spending the money for a gun I might shoot a dozen times. Almost ordered a mold from Arsenal, asking them to make one of their designs at .446" diameter instead of .458", but as above, hated parting with the $$ (durn scottish blood!!). Later it dawned on me that maybe I could either bore out an existing size die or modify a case size die. figuring a 30-06 die would work, I proceeded to shorten it. Took about 7 tries of cutting more from the top and polishing it but finally came out with a die that works like the Lee push thru die and the boolits came out to .4466".
Loaded two rounds, but neither would chamber. Went to bed. Next morning got out the calipers and measured the neck of the loaded rounds. Came out to .468" but the last 1/4" towards the case mouth was .474". Hmmm. Got out my 7mm br die and just kind of taper crimped the mouth area down to .468" and it chambered!!! Figured out that I was flaring the case mouth too much and the roll crimp worked but the mouth area below the crimp was too big. Reset the flaring die and loaded a third round, but just roll crimped. Chambered just fine.
Now to load some more and see how this rifle shoots, at least once it warms up a bit.