Hey UB...if you don't mind me asking, what is your budget? (don't worry...I'm not selling anything)
You can go all out with some really clear, precision optics like the Zeiss, Leica APO, and Swarovski if the "sky's the limit," or you can compromise on an still excellent scope for the middle range, or you can go low end which may serve your needs out to 300. At a minimum, for spotting .30 cal holes at 300, I'd say you want: 1) at least 30x on the high end of the magnification (more may be better); 2) get an angled eyepiece for ease of viewing; and 3) get at least an 80mm objective for better light transmission.
The Konus is not a bad scope for around $250 and may work well for you, but the one's that I have looked through have a slight "hue" around the outside edges of the scope that bugged the crap out of me, as well as color resolution that was not a clear as other scopes in the same price range.
If you want an excellent scope for less than $500 with tons of accessories included, try the Vortex Skyline 20-60x80. I have bought several scopes from Eagle Optics and always recieved excellent products an service:
Eagle Optics - Vortex Skyline 20-60x80 Angled Spotting Scope
Also, the Vortex comes with the scope and zoom eyepiece, a tabletop tripod, view-through case, lens covers and a lifetime warranty. For $429.00 shipped to your house...it is a hard scope to beat.
If you want to go high-end, any of the Leica Televid APO 20-60x80 angled, the Zeiss Diascope 20-60x85 and the Swarovski ATS HD 20-60x80 are the top of their game.
My current spotter is a Pentax ED Angled 20-60x80 scope. It has won several awards for optical clarity and resolution and praise from birding and shooting organizations. It is what I would class as a mid-to-high range scope that you can get complete with body, eyepiece, view-through case, etc. for around $1,100 I think (mine is about three years old and prices aren't what they used to be I'm sure).