270 Winchester & 140gr Ballistic Tip COAL

[vin007]

I have purchased 140 grain ballistic tips and want to develop a huntign load but what would be the idea COAL length for the 140BT's? I am using a regular caliper and will be measuring entire length of the cartridge.

Thanks

 

[Lefty Dick]

Star about .004" from the lands.
Optimum COL will vary from rifle to rifle,

 

[Davidf]

Since this is a hunting load, you can probably load to the maximum length that will fit into and feed out of your magazine reliably. Once you have this length, double check that you're not pressing right against the rifling.

At least this worked well for me with these bullets in my T3

 

[vin007]

Thanks for the tips guys, i know its probably been asked elsewhere but i couldnt find the info.