Clark,
You`re right about SKS groups. I am referring to a Ruger M77 stain/syn when I ask about barrel wear.

Rugeruser is exactly right. Australian farmers can use semi autos after jumping through the hoops & providing copius amounts of genuine reason for needing such a fearsome murderous firearm.

Also the rules generally won`t allow for any type of military self loader. It is preferable to use a mini 14/30 style rifle not designed for warfare.

According to our government & experts on crime, apparently commercial style self loaders are far less dangerous than their military counter parts.

Go figure.

Thanks for the replies
Morton3

[" I was hollow pointing them & for reasons unknown, did the magnet test. Only to find they are steel jackets on the projectiles. They are not of chinese manufacture."

This may flip your mucket but true nickle is also magnetic!!! roger

Bartsche,yes, iron , nickel, and cobalt exhibit ferromagnetism. Our coins ,the nickel were never magnetic because they didn't contain enough nickel but the canadian ones ,with higher nickel were ! I don't know about the present ones .

The "chinese" 7.62x39 FMJ pills should not harm any barrel because the is a 1/2mm soft lead sleeve between the outter tin jacket and inner steel core which allows the jacket to conform to the rifling.

You're not going to hurt any barrel by shooting steel jacketed bullets. The steel jackets are thin and very soft. The copper wash is there as a drawing lubricant and gives some corrosion protection. It doesn't wear through on firing, so the steel never even comes in contact with the barrel. The United States has used plenty of steel jacketed bullets, too, starting with the .30 U.S. Gov't (.30-40 Krag) in 1892. They were coated with copper-nickel, just like Turkish 8x57mm ammo. Nearly all the 7.62x54R FMJ ammo is copper-washed steel jacketed. Neither Mausers nor Mosins came with chrome lined barrels. Most bore wear (that's not caused by cleaning or lack thereof) is from powder gas erosion.