I have a Redfield 20-45x60 spotting scope that I used to use exclusively for 50 yd. .22 bench rest shooting. With it I could easily pick up my shot hits. Lately, I've been shooting an AR15 indoors at 100 yds. and am having trouble with my shots in the black portion of the target (where I want them to be) - I also plan to try 200 yds and will need something to let me see my shots out that far too. So, I started looking at stronger power scopes and found a lot at 20-60x60 and 25-75x75'ish. Any suggestion on whether moving up from a max. 45 to a max 60 will do the trick - it seems to be a fairly standard magnification. Or should I just jump to the max. 75 even if it loses a touch of clarity at that magnification. Also, I've seen quite a few Barska's at very competitive prices, but don't know the brand - are they junk? I'd like to keep my cost under $150 if I can without sacrificing the ability to see my hits. Thanks.