Re: 7.62 nato fired through GAP crusader .308 ?
You will have no problems firing 7.62 nato in your gap. However be mindful of the age, origin of ammo, and etc. Some really old surplus might have used corrosive primers.(Not a big issue just have to clean it with some sort of ammonia based cleaner) Some older surplus has been known to be overcharged or have extra pressure due to the age of the components. If it is American and if the age is from the time frame of the 80s to current, I would have no issue firing it in any of my .308s.