Yup, there are lots of posts about this exact subject here, most find the win white box 45gr JHP to shoot as good if not better than their handloads. Not many use 55gr and bigger due to the rifling twist rate of our rifles. My Ultra Varmint came with a notice to the effect of using bullets heavier than 55grs will be less accurate. After lapping the bore with bore paste, mine shoots the win 45gr JHP extremely well with .265" and .440" ctc 100yd groups after only 80 rounds thru it. The Ultramax 40gr Vmax shoot almost as good, ~1/2" groups at 100yds. With that kind of accuracy with $10-12 per 40 rounds ammo, I see no need to invest in components to reload for this rifle, at least for what little I shoot em. YMMV :grin: