a4 sporter?

[ed skeels]

If I remember correctly in Vietnam they put the scopes in "hot boxes" to defog them. Probably a box with a light bulb in it. Also held captive spiders to get filament for the crosshairs. Obviously before inert gas and proper sized wire. I'm thinking that was in Major Plasters Sniper book.
Deer hunter's would leave their rifles outside to keep the temperature change from fogging up their scopes.
Ed

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[browningautorifle]

If I remember correctly

All good info Ed, I'd never given any of that thought as I just thought scopes were gassed or some such for ages... Makes sense though that even some of the user scopes lying around gunshows never had gas. Must be why I have a hard time buying an old scope.