I've been saying that I will buy a SPotting Scope for years! Walking 100/400 yards SUCKS!!
For 24.95 I bought a BSA it has a Tripod and a red dot sight to aim the spotting scope at the target! It came the other day and have to say its worth the 24.95! I was shooting 100 yard Targets and used the BSA to check!! everything was CLEAR and could see the little holes! I didnt try 200 or 300 but I know it would do it!
So if you need a Spotting scope for under 25 Bucks MIDWAY has them!!