I have found after trying several different types of H&Ns, JSB, RWS and Crosman pellets for my .22 XS B50 that it likes everything Crosman and the most accurate to 40 yds+ are the Crosman pointed hunting and this after condemning all pointed pellets especially any .177. The only other pellet that I have good success with are the JSB jumbo heavy 18.13 but I have a low power setup and I will save the JSBs for 15ftbs+.