MarkInTexas wrote:I have settled on 16.5 grains of IMR4227 with 150 grain bullets. This is out of a 16" Model 1 upper.
Not the fastest load around but plenty accurate and pleasant to shoot.
What length are you loading to?
MarkInTexas wrote:I have settled on 16.5 grains of IMR4227 with 150 grain bullets. This is out of a 16" Model 1 upper.
Not the fastest load around but plenty accurate and pleasant to shoot.