I used to shoot 60g Sierras out of my .243 and killed ground hogs and crows out to around 400 yds. Wind was a killer with the little bullet because of the bad b.c. but when you hit a grounhog with it you usually had 2 pieces left! If I was to go to a strictly varmint gun and was going to keep my shots less than 300 yds or so. I would probably go with the 20 vartag or something similar. 4000fps with 32g bullets and burn less powder than the .204 ruger....might be neat. But then again, I haven't shot at a ground hog under 350 yards in 3 years