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Sometime late 70s, early 80s; a gun mag had a recoil test. They put black line on a concrete walk. Set a radio flyer wagon on the sidewalk, with front wheels on the black line.
Guy sits in wagon, holds rifle butt against back of wagon and pulls trigger. They measured how far the wagon rolled.
IIRC, ,30-30 was something like 4". .30-06 was 8". .300 Win Mag was 24"
They shot 12-15 calibers, finally getting to .460 Wby. The wagon went over 14'
Not that a wagon rolling relates to your felt recoil in any way; it does have a qualitative means of the degree of recoil. Nor does it differentiate the sharpness of the recoil, just shows the amount of push.
An interesting note, a 12 Ga slug and a 3" 000 buck were over 15'. No actual result, as the walk was 15' and then grass.
I am fairly certain, Weatherby did not offer a muzzle brake until mid to late 80s.
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