I have two 338s one a M70 and a Remington both with 2.5/8 L
The one on the M 70 was purchased over 15 years ago.
It has been used and abused and still holds p.o.a.
The one. On the Remington is 10 years old and no problems
We have changed over to this scope on our 12 ga slug guns as well
Good hunting
Phil