Pre 64's do alright. I have not kept real good records over the years....too lazy and who ever thought anyone would GAS?
Here's a few:
264 Win Mag pre 64 M70. 300 yards. The dot is 3".
300 H&H. 2 180 Sierras and one 165 Bitterroot.
A few shots with a 30/06 FW
300 Win Mag pre 64 M70 (yes an original one....
165 Bitterroot.
BTW these are not cherrie picked. I've thrown out dozens of targets like them fired with more pre 64 M70's than I recall.
In general they do pretty well.