Re: meplap uniforming tool
Generally speaking you will not normally see a difference at 200-300 yds. However at 1000 you normally will.
You will also lose about 2% of the bullets BC.
Sinclair, Tooley and Kevin Cram of Montour rifles all sell the tools. David Tubbs sells Tooleys tool under the Tubb name.
I use them depending on the quality of the bullet.