I was wondering if anybody has had problems hitting the target with Barnes 50gr varmint grenades. I used Reloader 7 powder in them. I seem to have a good group with 40gr nosler ballistic tip but just not with the barnes i have about a 6-7 inch group, Somebody told me that the barnes varmint grenades explode beofre they hit the taget is that true. has anyone had this problem before. let me know if you can help