GBA is another version of IBS. Same targets, similar rules. Rifle is a 6 BRA. I have read most of the "which scope is better" threads on this forum. It is a question that will not die. One of the reasons, and the reason why I post this, is due to the fact that the optics talked about a year or more ago are not necessarily the same now. I currently use a NF 12-42 for 100-300 yard matches and ringing MOA steel out to 1000 yards. Very happy with it. I would like more power for the greater distances and smaller group shooting. If money was not an issue which would you put on your dedicated 1000 yard rifle? Considering: S&B 12-50 (not sure if the small amount of extra magnification is worth the money over the NF 12-42) Trijicon 5-50 (same as above, but only about $1700 retail) NF 15-55 March 10-60 (concern with March is service times and availability) March 8-80 Other* Is the March 80x too much scope? Does the extra power make it too dark or limit it's effectiveness in other ways? The more I read the more I see people lean towards the 10-60 over the 80X.