Came into a bunch of spools of SUPER B-43 dacron waxed bowstring from the 1960's. Think it is safe to use?
:dunno:
Was it made by Brownell? Maybe if you can call the manufacturer and ask them.
From the 60s, speaking for myself, "no".
Do a strength test on a few samples. I bet it's fine.
Yeah hang some weight from a strand.
Id bet its fine
Lots depends on how it has been stored.
ditto the test, then use it. Gary