Originally Posted by DeltaF
I've gotten lots of suggestions for cheaper scopes but none with experience in a larger caliber attached.
Here's my experience from using a low cost Center Point Scope on a high Recoil Rifle.
I've got a 30-06 and tried a (new--just come out) Scope, called a Center Point Adventure 4-16x40 w/AO back in 2006. I saw it had lots of Bells/Whistles on it and looking through the Scope, it REALLY did have some Clear Glass and I liked the Reticle which also had Illumination.
Put on Rifle and Lazer Bore Sighted. Took 1st shot @ 100 yds. Great, it's close to Bullseye at 2 o'clock. Adjust, reshoot. Now it's 7" away at 9 o'clock. Another shot. Bullseye. Shot, it's now 10" at 6 o'clock.
Took Scope back to WalMart. It won't hold up to Recoil. Yes it's on Paper, but not holding POI.
WHY? It's because the Innards that help with adjusting the Erector Set(that's what the Reticle is built in), basically a Tube in a Tube with Springs attached, that lead to the E/W Adjustment Knobs, aren't strong enough to hold things in place, so the POI is bouncing all over the place from each Shot.
This is not to say that if you purchase a Center Point in a 3-9 or 4-16 Magnification won't work on your 30-06 or even 300WM for awhile, but are you willing to keep purchasing cheaper costing Scopes, just to find the one that holds up for a few Years, when you can purchase a better Scope 1 time that will last a Lifetime. It's not the Exterior of Scope that necessarily needs the Quality, which is also good to have, but the Interior too.
If you really want to go cheap, but good, I would head to a Pawn Shop or LGS that sells some (OLD) "Japanese" Tasco Scopes in a Grab Box. You might even find some in a display case. Believe it or not, these Old Tasco Scopes, which don't have the Glass/Coatings of Today's Cheapest Scope, but their Innards were built much stronger/better. These were very good Scopes back in the 60's & 70's, and you can get them for less than $20 for a 3-9x40.
They won't look pretty, but they'll stand up to that 300WM for years---as long as their Seals are still intact. These were the Poor Hunters quality Scope back in their day.
You might even happen to stumble across some used Colorado-Redfield(Widefield), Weaver K or V Model, or a Old Leupold--even better, but you will pay a little more. I'm over 58 and have had some form of Gun in my Hands since I was 6yrs old. Always liked/had Scoped Rifles for Hunting or Target.