Dunno about any Speer chronograph test in 1969. Where did you find that?
But my #6 Speer manual (published in 1964) includes a big list of chronograph tests of factory ammo in their test rifles. The 175-grain factory load got 2990 fps from a Remington 700. The 150-grain Remington ammo got 3135 fps.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
