Thanks for the info guys... Here's some clarifying info.. The club I'll be joining has about 15 action ranges, going from 30yds to 90yds. They throw one IPSC mini-rifle match a month. Don't expect to see anything smaller than normal IPSC targets beyond 50yds. If I go to other clubs, whether it's up north or in Peru or Argentina, I don't expect to see much of a difference.. Pistol/shotgun-oriented facilities so short distances. I will be shooting open since it's IPSC and any glass = open but I don't see a benefit in using magnified optics at such short ranges other than cross-training for centerfire and 2 major drawbacks (speed/weight).
One of the top guys in the MR game (globally) runs a 4MOA railway, but I'm not sold od C-More's durability, plus iirc those run some weird, hard to find batteries. That's why I was looking for something similar but more rugged and running common batteries. The Spitfire does look appealing though....