How does mild steel hold up at 1 & 2 miles?

[EXPRESS]

Using heavy hitters like the .375 & .408 Cheytac or even.460 Styer, how does mild steel plate hold up?

I'm looking at using some 4mm (1/8") steel for targets.

If I have to use thicker, it's better to go with Hardox which I know stands up to the impacts and the cost/weight factor becomes moot.

Since I want these targets to be very big because the terrain doesn't show misses very well I need to have as big a plate as possible. At 2 miles I've got 3.2x3 meter and I want to tryto stay around the 1 MIL/3 MOA size so that we can spot misses.

 

[catamountsierra]

My guess is it will hold up a bit better than cardboard. I think you might be shooting through it, but it might ring quite nicely. I haven't ever shot at any that thin or at the distances you are talking about, but I have hit a mild steel target frame (1/4") and 300yds and holed it with my 7mm-08 and a 139gr Hornady Interlock. If it was hardened steel and allowed to swing, it might do better.

 

[jbs2014]

So according to this video the "improved" 375 Cheytac penetrated the 3mm steel plate at 2400 yards.

fast forward to 14:25 to see

https://www.youtube.com/watch?v=XiuAF4Vv-aw

Hope this helps some

 

[200plus]

Get the AR plate it will work for you.

 

[milo-2]

I have 3 IPSC's made of T1 steel at 1850, 2K, and 2078 yards, the held up fine to a 338 snipetac pushing a 300gr Breger at 3250 fps.
Being rigid mounted, not much give, I can say you don't get the "ring" we want to hear and being softer, absorb a lot of the sound.
That said, after 1K, ar400 has better sound than ar500.

 

[Sig21]

I used mild steel 3/8 thick, shooting 300 Bergers in a custom 338lm at 2795fps
No penetration, and could not hear at 2000 yds

 

[Kansaswoodguy]

At 900 yards 338 lapua will shoot thru 1/4" mild steel can't say behind that never tried it.

 

[4xforfun]

My 300 wby/230's and my 338 edge/300's punch holes at 1500 with 1/4 inch mild.

 

[alcesgigas]

At a mile (at 620' ASL) about 50% of 338 Edge hits using 300 Berger OTMs get through 1/4" A36 (mild) steel.

 

[EXPRESS]

Thank you, that is the kind of information I was after.
To be safe, I went with an AR450 steel, so we won't have any problems,