178gr Amax 2nd attempt

[markdavidson]

don' look for a thread entitled 1st attempt...it wasn't picture worthy

I am going to refine this at 300yd:

 

[planeflyer21]

<thumbsup>

[unforgiven]

Good eye brother. <thumbsup>

[NoFail]

Nice little group, MarkDavidson...

 

So what's the recipe?

[survivalshop]

What barrel & twist rate you using ,also ?

[markdavidson]

that is a 178gr Amax on top of 43.9gr Varget using a

Smith&Wesson M&P10   1:105r

Remington brass trimmed to 2.005

CCI 200 primers COAL of 2.2810

I was having issues with my chrony that day so I don't have that, info but I am rolling up some more today for another tighter bracket to see what a 300yd set of groups looks like

[Justintoxicated]

Sounds like a hot load.  You see any pressure signs?