I have been noticing the relatively cheap .22 Crow Magnums and Barracuda Hunters. I purchased some to see how they shot compared to Diabolo Jumbo Heavies. They all fall in close Proximity weightwise. Well the Heavies all group pretty tight but the two hollowpoints kind of spray around. I have had good success filing the hollow with gel super glue and improved grouping dramatically. The thing I come up clueless on is whether the hollowpoint will still expand as usual. If anyone has any experience with this I would love to hear of your results.