Gunchamp
Glad to see the base and rings put to good use.
Bob (RJM),
You are really going to enjoy that .475. About 5 years ago, I bought its twin, right down to the magnaports. I shot over 12,000 rounds thru it in the first couple of years -- mostly 400gr at 1,100 fps. I've never noticed the ports except for the time I forgot to don my earmuffs and lit one off under a corregated roof at the range -- thought I'd blown the gun up, but after a thorough exam and the ringing in my ears, I realized what I had done. My 4" S&W 329 with .44 Mag loads is louder than the ported .475 (verified by others). There is a noticible recoil difference in a 400gr at 1,100 fps vs. a 420gr at 1,300 fps. FWIW, I find the FA83 .475 more comfortable to shoot than the Ruger Super Blackhawk
I have a second FA .475 LB. It also has a 6" barrel, but is not ported. There is a slight difference in muzzle flip with the ported gun, but not real noticeable and I can't tell any difference noise wise (but being half deaf might not be a good comparison).
McInnis,
I have a 4 1/4" FA97 in .45 Colt with an octagon barrel -- it would look a lot better with your grips on it. I've basically standardized on two loads -- a 320gr (RCBS SWCGC or LEE FNGCDC) at a little over 1,100 fps and a 270gr (actually 280+) RCBS SAA at 900 fps. These two loads shoot within an inch of each other at 25yds (with the 320 1" higher) in the 4 1/4" bbl. Mostly use the 270gr.
Here are some pictures of the above and a 5 1/2" FA97 w/octagon barrel in .22LR/WMR.
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.475 Linebaugh
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FA97 4 1/4" .45 Colt
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FA97 .22LR/WRM:
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Paul