I couldn't do that with the stock Lyman 17aml globe inserts. I am not bashing them!!
I am saying that there is no way to shoot over 100 yards because they are just not fine enough. At 250 yards I can put the Lee Shavers insert on this target and I can see paper on all 4 sides. 300 yards covers it up. The Lee Shavers inserts make all the difference and they fit right into the Lyman.