Talked with Rick99 a lot on this, and we just couldn't find a "firm" switchover date/serial number. My guess is they made the change but had a lot of loose barrels on the shelves. And both type of barrels were used for a period until finally the short base were used up.

So, yes.. pretty much agree with Keith.


I found a 99G in 300 Sav at 272,2xx with long integral base.
And I found 99G's in 300 Sav around 284,xxx with short integral bases.

I'd say it's mixed from low 27x,xxx up to mid 28x,xxx.
Almost all long from mid 28x,xxx to high 29x,xxx.


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