What technique did you use to shoot them? If you fired them freehand you are wasting your time as the results will only be as good as the shooter's ability. The only way to get a true indication of the load's accuracy is to shoot from a solid rest. And unless it is a properly adjusted Ransom Rest even that is not perfect as it is still subject to the vagaries of the shooter's technique (accurate sighting, trigger squeeze, grip, etc.) but it is far better than blasting away unsupported. i can't count the number of times I have seen guys fire target after target freehand with poor results and blame the gun or the load when, in fact, it was their lack of skill.
Use a solid rest and take your time. Shoot no more than 10 shot groups. Even better, get a friend who is a known good shooter and let them fire the loads for you. That will give you a true indication of how good (or bad) the loads are. If they are still all over the place after that then the loads are likely to blame. In probably 90% of the cases, however, it is either the shooter or the gun.
