COAL for 75 AMAX in an AR

[BC 6.8]

I picked up some 75 AMAX to develop a load for in my 5.56. I know they cannot be loaded for mag length, but I want to try them in some mid-range F-class matches. Does anyone have any recommendations for COAL or distance from the lands?

Thanks.

 

[joemusso]

C.O.L 2.390 is what the hornady book says.

 

[BCP]

2.45" 24grains varget

 

[BC 6.8]

Thanks guys. I need to check how far it is to the lands with this bullet.

 

[Tempest 455]

Totally different gun and applications.

However, just FYI I used 23.5 of Varget and seated them at 2.390 in a Savage bolt rifle and that was a very accurate load to 400 yards.

 

[308sako]

Since it becomes a single load proposition; see how far it is to the lands, back off .005" - .010" and load as much powder as you can with safety. They are a pleasant surprise at distance.

 

[BC 6.8]

If I measured correctly, my COAL at the lands with the 75 gr AMAX is 2.517" or 2.998" with the Hornady comparator. That sounds really long, so I plan to back of 0.025" for load development. That would make my COAL 0.10" over book. Any thoughts?