Over the years I have hoarded "a few" Meteors.. They are fun to tinker with, so they tend to follow me home.
One thing I have noticed is that there is a large variation in barrel pin diameter!
I have measured pins varying from a loose .234" to a snug fitting .250", these pins still have their bluing intact and show very little if any wear. I have replaced the loosest pins with cut down modern supersport pins.

What on earth were they thinking, fitting .234" diameter pins in holes drilled for .250" pins???