Back in the early 50's, when the Win model 88 was new, as was the 308, the NRA did some their routine review, but with an in depth comparison of the 308 to the 300 Savage. They then decided to fire 300 Savage rounds in the Win 88.
Three interesting results.
1. the Savage ammo produced better accuracy than the 308 the rifle was chambered for,
2. the Savages fed flawlessly, and
3. no problems were encountered due to headspace differential.
Elmer Keith got involved and characterized the 88 as "super accurate." He also hoped Winchester would offer a bigger version, at least 33 cal, no surprise there.
They did end the article stating that you should not try this at home.
The article can be found in the June 1955 Am Rifleman.
