I own a 22A with a 5.5" barrel and a 4" barrel. It eats anything, but as is the case with most rimfires I have encountered a wide fluctuation in accuracy between loads. I haven't done nearly enough formal testing to see what groups the best, wondering if anyone has? Also, any opinions on the larger laminate target grips? I wish I could find a used set to try out, they are kinda pricey when compared to the cost of the gun...