The post Protectors from Atlas work very well. I just had to shoot them on purpose to see if they would break or damage easily. They did not break or weaken inappropriately.
atlas product buyer,
These post protectors did a nice job of minimizing the splash damage to my 2x4 target posts. The included lag screws were a nice surprise as well. They were definitely a good investment.
I just wish you would offer it in longer lengths, most of my target stands has the 2x4's horizontal and I wouldn't have to drill as many holes, this causes me issues on where I can mount the targets on the 2x4's.
These work great when teaching students who sometimes shoot low. Get them spray painted and they will show the impact points.
Great to do business with.