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instruction manuals are available from investarm s.p.a.25060 Marcheno,Italy
No published sn data.
It is possible
Go to their web site and they will e-mail you manuals for any of the particular models you own.
50- 175 usd
It is a Mountain Stalker. You should contact customer service, and get an owner's manual for your rifle. A .54 caliber rifle will use ABOUT 80-90 grains of black powder per shot. The exact load will depend of whether you are shooting round patched ball, Maxi-ball, or sabots.
Modern reproduction- typically 25 yrs old or less.
powder
Requires professional appraisal
Do not attempt to do load with smokeless powder.
if the rifle was manufactured in 1894 it would be black powder.
Ignites the powder.