In 2004 I bought one of the M71 High Grade Browning 20" Carbines. I really did not mess with it a lot, I bought bullets/dies and brass, ended up firing 60 rounds total over several months for load data.
I was not really impressed with the caliber to be honest.
Later I discovered I could convert these to a proper caliber, .500. I developed the 50 B&M Alaskan, a true .500 caliber cartridge by squeezing down Starline .510 caliber brass. Easy, simple, size and start shooting. Over the years after working with Cutting Edge and North Fork we developed some super bullets designed specifically for the cartridge in .500 caliber. Rifles were standard 18 inch barrels and rather handy. Not to mention damn good looking...... or to my mind anyway.
After the 50 B&M AK, I never looked at or tested anymore 348s.
I ended up with 5 of these in the end.
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Layne Simpson being a lever action fan also liked the rifle and cartridge, doing several articles on it, even building his own rifle as well. In his first article he used one of my Brownings I sent to him.
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