So I just ordered a 12" gong style AR500 target from Shootsteel.com, and I have some questions about AR500 steel in general before I receive it and start using it. I'll mainly be shooting it with my handgun and .22, but my concern is shooting it with surplus 7.62x54r with my mosin. I know a lot of the surplus stuff is steel core, so what would that do to the target at around 100 yards? I know it has no chance of going through it, but will it dimple the target? Also, what will happen to a steel core bullet upon impact, will it just smush up or ricochet somewhere?