To my understanding these were made in 7 grades (listed below). The shotgun in my possession does not have a Damascus barrel (due to the absence of scroll type engraving). I also doubt its a fine twist barrel because of the smoothness of the barrels. I was advised to first go with low brass handloads (birdshot only). I was hoping to hear some info here about the effect that the modern shock absorbing wads have on chamber pressure and if I should go with felt wads (which leak gas a bit more). If period appropriate wads are preferred in this case.
That being said, does anyone have an experience operating this old SxS hammergun?
(Remington website)
Grade 1 – Decarbonized steel barrels
Grade 2 – Fine twist barrels
Grade 3 – Damascus steel barrels, engraving
Grade 4 – Damascus steel barrels, better quality engraving, curly walnut stock
Grade 5 – Damascus steel barrels, extra engraving, selected curly walnut stock
Grade 6 – Extra fine quality Damascus steel barrels, scroll engraving, fine selected curly walnut stock
Grade 7 – Superior quality Damascus steel barrels, extra fine scroll engraving, elegant curly walnut stock
That being said, does anyone have an experience operating this old SxS hammergun?
(Remington website)
Grade 1 – Decarbonized steel barrels
Grade 2 – Fine twist barrels
Grade 3 – Damascus steel barrels, engraving
Grade 4 – Damascus steel barrels, better quality engraving, curly walnut stock
Grade 5 – Damascus steel barrels, extra engraving, selected curly walnut stock
Grade 6 – Extra fine quality Damascus steel barrels, scroll engraving, fine selected curly walnut stock
Grade 7 – Superior quality Damascus steel barrels, extra fine scroll engraving, elegant curly walnut stock

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