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Makes me curious to see what a 177 version would do with a JSB KO Slug. If they can do 20fpe that might be a nice speed for expansion.

Anyone know if the Mach 1 version has a shroud around the barrel or is it just solid plastic? My Hunter version just has the normal Gamo air stripper thing that doesnt seem to do much to quiet it down.
I have the .177 Swarm Magnum.
Here’s a 10 round group at 15 yards with 14 grain slugs. All under 1/2in except the 2 I pulled.This was my first slugs through the gun. Chronied 850-860fps if I remember right

Edit to say I’m getting errors when trying to load the pics

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