My Blaser will do something similar, in fact I'd intended to shoot a target using 6 different bullet/load combinations and post it here to see what the comments would be. I'm not a great shot so it was never going to be a stellar target but I'll bet they are all close enough to make no difference.
What you need to be careful of, however, is that that if you were shooting at 100 yards then they will almost certainly drift apart at longer ranges but I'm guessing you will be expecting that anyhow so it will not be news to you.