The 10" steel target is recommended for use at 250 yards (4 minutes of angle). 

We use a water bath precision plasma cutter to cut all of our metal targets. The rifle target mounting holes are designed for 1/2" carriage bolts. Some targets may require the use of  7/16" carriage bolts. 

One mounting option for this target plate is an adapter that bolts to the target and fits over an angle iron stem.

We also have an A-frame with pendulum, that disassembles, without tools,  for transportability.

Other target product information can be found on the 'Rifle Target - Homepage'