FX Impact .177 vs. Groundhog!!!

Got this guy with an off hand shot clean through the head from approximately 35yds. He gave me one last peek before he attempted to scurry down his hole. 
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Pretty good with Heavy pellets, the JSB Exact Heavy 10.34g group very well for a .177 and the JSB Monster 13.?g also shoot extremely well but they won't cycle in the mag because there a little to big. These aren't the best groups at 100yds as I'm still training to be a better shot but I'd love to see this gun shot in .177 by a more capable shooter. Anyway the groups are getting tighter with practice. Go easy on me fellas.
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