There are a lot of threads here about the 97 factory bushing fit and details and about the benefits of the CGW "E" bushing modification that CGW offers. When I finally went to a .45 for bullseye instead of using my plastic 9mm P-09, I ordered a 97B"E" from CGW. It has been my centerfire match pistol ever since, except for a short period when I was experimenting with the P-07 and a 9mm 75B slide (also with a CGW bushing) on my Kadet host frame.
This morning I did some testing of the P-10C at 100 yards and then decided to shoot the 97 before heading home. The results are shown in the video below, which will be available by about 4:15pm CDT this afternoon for those that can stand to watch me shoot 10 rounds very slowly at 100 yards from a wrist rest. Video is about 5 minutes long.
Bottom line is this. The 97B"E" is as repeatable and tight as my P-09, and that means it is absolutely perfect, with the CGW bushing (along with Atlanta Arms 185 gr JHP ammo). It took me maybe 11 rounds (10 plus the first shot in the group in the video!) to adapt to the feel of the 97 trigger and the red dot sight picture after shooting the P-10C with open sights. The hits are absolutely going to be where you aimed the gun plus the holdover. A shot outside of the bullseye is a shooter sight placement variation, not a loose gun. The group size is determined by how accurately one can repeat the dot placement. I can see the dot move slightly with a heart beat, the way I shoot the pistol from a wrist rest. "Slightly" at a 100 yards is 3" at the target, easy.
https://youtu.be/u7Rp9RLx3QESo, if you have a 97 with a factory bushing and want to tighten it up, the CGW bushing is the way to do it, just as a CGW bushing in a standar 75B will tighten it up as well. Best pistol modifications there are for a factory service gun, if you are interested in precision shooting. I am.
Bullseye and shooting long distances from a rest are the most difficult and the most rewarding shooting disciplines I have ever tried. Shooting a pistol well from a rest has unique challenges and is not easy to do well. If it was easy, all the shots would be in the black in the video above.
Another thing. People usually don't shoot 10 shot groups at 100 yards with a pistol. Folks lose a little sharpness and concentration after 6 or 7 shots. I shot 10 because I was absolutely sure the group would be "good" if I did my part. I did very well for 7 of the 10 shots, OK for 2, and blew one.
Joe