Current m70 classic safari contour

[Iclimb]

Does anyone know what contour is closest to that offered by Winchester in the current classic safari?
it’d be fairly heavy maybe a #4 or maybe bartlein 4b…something like that. I’d rather it be a little smaller as I can open the inlet up….i need to list this on the mcm order sheet...
but if I can nail it with a specific contour all the better.
thanks

 

[450 Dakota]

Just tell them current factory Winchester Safari. They have the program for that barrel. I live 20 minutes from them.