Are 150gr M80 projectiles steel core?

[Luke E.]

Never payed much attention but last night another TGO member and myself were loading some of the M80 pulls I bought from David and I dropped one and it stuck to the magnet that was holding a couple allen wrenches to the side of the press. I suppose i'm not asking so much as I was surprised. I can't think of any other reason for this.

[MSL30]

I picked up some from Grafs and they did state they were steel core with copper jacket.  Haven't loaded them yet so I don't know how they will do.  From what I read on the web, they should do fine.

 

Michael

[Luke E.]

I picked up some from Grafs and they did state they were steel core with copper jacket.  Haven't loaded them yet so I don't know how they will do.  From what I read on the web, they should do fine.

 

Michael

 

I've loaded and shot several hundred of them through my 300blk but just never had them close to a magnet before. What cartridge are you loading them for?

[dlm37015]

some have a bimetal jacket but not a steel core

[TNMTBik3r]

I just shot some of the M80s today in my 30-06. I got them from David at the Nashville show, bought just as a cheap target bullet and wasn't expecting too much accuracy wise (maybe 2 MOA). But surprisingly accuracy today was pretty good, 1moa on average but even some half minute groups. Loads were over Varget and IMR4064.

[Luke E.]

some have a bimetal jacket but not a steel core

 

 Okay good to know. I didn't think about that being a possibility.

 

I just shot some of the M80s today in my 30-06. I got them from David at the Nashville show, bought just as a cheap target bullet and wasn't expecting too much accuracy wise (maybe 2 MOA). But surprisingly accuracy today was pretty good, 1moa on average but even some half minute groups. Loads were over Varget and IMR4064.

 

 I got mine from David as well and have been loading them for my Blackout and they are easily sub MOA capable if care is taken loading and developing the load.

[jaysouth]

Your OP got me to thinking.  I pulled out the M-80 pulldowns that I have in the cabinet and tested them in a magnetic parts bowl from Craftsman.  Pour a handfull of bullets in the dish and tip it over at an angle.  Some of my bullets stuck to the dish, some did not.

 

I now have a good rainy day project for grandkids.  Seperate all the magnetic attractive bullets from the ones that do not stick.  

 

Does it really make a difference?  I never thought about it until this thread.

[Luke E.]

Your OP got me to thinking.  I pulled out the M-80 pulldowns that I have in the cabinet and tested them in a magnetic parts bowl from Craftsman.  Pour a handfull of bullets in the dish and tip it over at an angle.  Some of my bullets stuck to the dish, some did not.

 

I now have a good rainy day project for grandkids.  Seperate all the magnetic attractive bullets from the ones that do not stick.  

 

Does it really make a difference?  I never thought about it until this thread.

 

 

 As was pointed out to me above, the magnetic ones are that way because they are a bi-metal jacket. I'm not sure of how it doe or does not effect flight but it stands to reason that they would be more abrasive due to the steel mixed into the jacket which could cause more wear in any given number of rounds. If anyone has any numbers that compare copper vs. bi-metal jacketed bullets wear tendencies, i'd love to see/hear them. If they do cause more or less flight disturbance i'd like to hear about that as well.