I�ve done it.

Hit the screens numerous of times.

Hit the display of my Chrono with a 22/308 sabot once.( it died! )

My father killed the second ( ChronoTech ) with 22LR -Remington Yellow jacket HP.

The last one is untouched.

Anders �sterberg

Never have shot my own but loaned it out and it came back with a flesh wound, no real damage just cosmetic.
A friend of mine was shooting his bow through it and missed the target completely and killed one of my chickens.

Yep, i shot mine with a 35 remington contender.Hit dead center,took everything but the case.

Ya, I put a 375 300 gr thru mine.

Blast............ I placeds a permanent shield in front of the first screen. Those unburnt powder grains come out at incredable speeds and have damaged the workings.

Another trick for alignment, but it only works on a gun that you can bore-sight with the unaided eye:

Pull the bolt or open the action, and bore sight the gun by looking from the heel of the stock so that the target is centered in the bore. Now, leave the rifle in that position and either have a light colored background or a light behind the gun. When you set up your screens, you will see down the bore from the muzzle end if you are looking directly down the bore. Align your screens so that the muzzle points through the screens where you want the bullet to pass.

If you try it, you'll see what I mean. I'm still waiting to hit my screen, though I have blown them over from the muzzle blast on my .450 Watts.