When I had CZ Varmint I always used 40 grn loads. I also enjoyed shooting with RL-10x and RL15 at the range. I haven't experienced them while hunting but I guess it could've been fun. Btw, CZ varmint isn't my favorite barrel rifle ever, so I decided to get rid of it. Sold it to my friend from Texas ...

How much did you pay for it? Looks pretty weird