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Post by mart on Dec 13, 2019 20:12:09 GMT -5
I picked up the 41 today. I always regretted trading off the old four inch 57 I had years ago. One of the most accurate revolvers I ever owned. I'll try to get out next week, weather permitting to see what this one will do.
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Post by ezekiel38 on Dec 13, 2019 20:38:55 GMT -5
Nice 41
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Post by mart on Dec 17, 2019 21:11:48 GMT -5
I got out to the range today with the Mountain Gun. I took several different loads. Most of them the 410549 SWC bullet, with different powders; Bullseye, Unique, HS6 and 2400 as well as some old 255 WLNGC I loaded 20+ years ago with straight linotype bullets over H110. Some of the 410459's were cast with an Arsenal mold, some with a Lyman 410459. The Arsenal bullets were with range scrap and 2% tin. The Lyman were WW lead.
I pin gauged the barrel and cylinder yesterday. Slugging the bore gives me a slug with 5 lands and grooves so it's a bit of a challenge to get a precise measurement but rolling the slug so the edge of one land is leaving the micrometer jaws as the opposing one is entering gives me a .411-.412 groove diameter. Not the best way to measure a five land slug but poor people got poor ways.
What surprised me was the cylinder mouths all pinned out at .409. That disappointed me a little but I thought I'd shoot it first before sending it off to be honed out to .412. Pin gauging the barrel showed me some thread choking. Looks like a fire lapping is in order. After I get the throats opened.
Despite the critical dimensions being less than favorable for cast bullet shooting, it shot surprisingly well. All these were shot with a Ransom Rest. I am not a good enough handgun shooter to evaluate a handgun when it comes to shooting a lot of groups. The lower right target I shot freehand with a few of each load, single action, to see what the recoil was like for each in the Mountain Gun. The middle left target was my embarrassing double action performance. Of course the Bullseye and Unique loads were pussycats. The HS 6 load was easy shooting with a touch more snap than the Bullseye and Unique and I was pleased with the way it grouped. I thought the 2400 loads would be a little sharper than they were. They had some snap but still very shootable. The real surprise was the heavy 255/H110 load. I imagined it would be pretty uncomfortable in the light Mountain Gun. But, while it bucked with some definite authority, I thought it far more tolerable than my heavy 45 Colt loads in my 4" Redhawk.
I have a hunch that if I get the throats opened up, it will probably turn into a one ragged hole, gun.
Here's a few pictures.
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