300 win mag & 180's (3 Satterly Tests) - I can't believe what I'm seeing

[excaliber]

That's some smokin' velocity with the 180g bullets. When I shot RL22 with the 180 AB the speed was right at what you are seeing at 75g.

My barrel throat isn't anywhere near that deep. I'm at 3.62 to the lands. I load to 3.505"
What reamer did they use on that barrel?

 

[WYhuntshoot]

I load the 212 ELD-X for my 300 win mag at 3.880 with the ogive tool.

 

[hunting1]

I am getting 3025 average with H1000 and 200gr NAB 23" barrel so it does not surprise me. Some barrels are just faster than others.