.58 smoothbore

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What powder and shot load max and minimum
Max loads are often not the best. Get a tuna can. Set it at twentyfive yards and fire away. Start with sixty grains and 7/8 Oz shot. Do you have enough to penetrate the bottom, do you have enough for a reliable hit
Increase shot up to 1 and 1/2
Generally twenty five yards is plenty for a cylinder bore. Mike belive shot 2 Oz in his .62 and got hits on a turkey head target at forty yards, but not reliably. He could have easily had a wound or even a complete miss with that load.
Increase weight of shot over powder. Increased powder can ‘blow’ a pattern you may find charges as high as eighty grains inefficient
A Squareload or a little heavier on shot usually gives your best results. That’s same volume of shot as powder. 70 grains of powder is about one ounce of shot.
 
Little surprised that the "Skychief" method has not been mentioned. ... but then we ARE talking 24 gauge😁😁.

Seriously tho, why not use or try the Skychief method in a 58 smoothie?
 
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