Means iron in the jacket somewhere. Some ranges prohibit bullets that attract a magnet because of damage to range equipment (if the bullet is indeed "armor piercing"), or danger of fire. Both these dangers are BS as far as I am concerned, but rules are rules.
If you are under no arbitrary restrictions such as these, the CMP ammo is the best deal you will find.
Corrosive ammo is not a problem. Just clean the rifle with water when you are finished shooting.
CMP ammo is the best deal around, good noncorrosive accurate ammo It is lead core steel jacket with copper wash or coating. Some ranges out west dont allow it because of a very small percentage that it could spark hitting a rock and cause a fire. Why buy corrosive ammo when you can get this at a great price? If you do shoot corrosive ammo in a Garand you will have to do a complete break down and clean everytime you shoot which only accelerates wear on the gas clyinder and splines and it takes 40 -50rds to get the action settled back down into the stock before accuracy will return
If shooting corrosive ammo I would definatly dissasemble the gas sytem for cleaning. Ever notice all the carbon that blows out around the gas cylinder? Even though "most " of the pads are chromed on the barrel some aren't also corrosive salts could get up under the gas lock ans corrode the barrel. Bottom line is if shooting corrosive ammo do a complete break down and clean.
I have shot plenty of it in 1903's and 1903a's and no problems whatsoever. Some report havind occasional problems ejecting from bolt action but its occasionally
Apparently, the Greek ammo varies a good bit from lot to lot and year to year. A cursory check at the CSP/Jouster board indicates that the HXP71 does fine in both M1's and bolt rifles, while the HXP77 seems to be a bit on the hot side. No problems in the Garand, but it tends to be "sticky" in bolt-action rifles, specifically, the 03A3.
I've not verified this myself, so this is a "for what it's worth" posting.
