If I want to try shooting some slugs out of my Impact M3 do I have to purchase a slug probe or can I use the stock pellet probe?
I get the exact same performance with slugs, not one FPS difference between the 2, with the stock pellet probe as i did spending money on the slug probe kit. it's a waste of $$ on the M3. I think that upgrade was actually made for the older stock impacts because it makes no difference on slugs and actually hinders pellet performance if you use the pellet probe shooting pellets. You'll figure that out on your own if you purchase the so called upgrade and use it with pellets.
The M3 comes prefect from the factory for pellets and slugs. I turned my barrel to the slug side and use that for pellets and slugs.
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