Interesting roll stamps of an unknown origin!
My curious mind immediately goes into skeptical questioning mode when I see a statement like this about velocity or how it correlates to anything else like powder used, load weights, chamber pressures & so on.
The big question for me is (What is Standard Velocity and Who set's that Standard) SAAMI sets the standard for chamber pressures these days but is there any entity now or in the past that sets standard velocity speeds, if so, what are they? Are these standard velocities commonly known by the average Joe buying a box of ammo? If not, I question the need for these roll stamp markings in the first place. It's pretty fuzzy and needlessly confusing.
If I were a betting man--I'd place my bet that there were some attorneys involved with these stamps somewhere along the line.
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