I just bought a Bulldog from mercado here on the forum. It will be my first big bore airgun. I’ll probably start out with pellets until I can get it modified to shoot a heavier slug. How do the Polymag’s group out of the Bulldog and what’s the best speed to shoot them at? I was hoping to keep testing to a minimum given the ammo supply issue. I am also going to order a moderator for it. Has anyone tried both the Pit bull Mega and the Donny FL Emperor? I’m looking for the quietest one I can find for it.
The Predator Polymags are one of my most accurate rounds out of the Bulldog! I shoot them around 930fps and I have the Pitbull Power Spring installed in both of my Bulldogs. I have barrel supports in both Bulldogs, and that really keeps the groups tight. I also have the DonnyFL Emperor and Ronin for my Bulldogs. The Emperor is the quietest, but it's front heavy and long, so I mostly use this only when I'm shooting from the bench.
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Here is a 105 yard headshot with the Polymags on a groundhog with the Bulldog.
https://youtu.be/-4mo_p1tPXs
I also have several other shots from varying distances. One thing to note about the Polymags, is depending on the game you shoot, penetration may be limited due to the ultra-soft lead expanding very early on. I ran into that problem with a few massive groundhogs. For instance, this groundhog at just 30 yards was rather small, and I didn't get a full passthrough.
https://youtu.be/aLXTueSqyOI
The JSB Exact rounds have a harder lead alloy, and penetrate deeper to get to the vitals, but they don't expand as much.
You'll do yourself justice and try out the NSA 110gr. HPDB slugs. I bought the .357cal and my groups tightened up when I got the .358cal ones. They cut through raccoons like nobody's business!