groundhogs

Yup, as long as that Titan is shooting like it should. I've crushed a family of groundhogs with a lousy shooting (poorly assembled) Vantage NP and el-cheapo Crosman Destroyers. Admittedly my range was more like 15-20 yard shots, but the gun was only shooting in the low 700FPS at the time, so I call it a wash. For these marmots a .22 is better, but within 30 or so yards a .177 will do it with a proper head shot. Just be accurate.