For what it's worth, if you live close to a Tractor Supply, I have tried the Winchester. 177 pellets in my Compatto with very good results on low power where I was afraid of damaging what was behind the target in case of a pass through. From Google these appear to be 9.8 grain pellets made by Gamo. While they are inexpensive ($5.00 per 500 tin at TSC), they do shoot pretty well out of the Lothar Walther barrel...especially as a less expensive alternative for plinking with VERY few damaged skirts. They seem to, for me, to shoot close to the JSB and AA 10.34 gr. Just a thought for what it's worth.