Calvin45
Well-Known Member
This powder is all or nothing. It either ends up being amazing or quite a disappointment. I believe the manufacturer even says that about it: "where it works, it really works!"
I used to think it was slower burning than advertised. I know understand it's burn rate is simply hard to pin down because, like RL17, it is a progressive burn rate powder. As such it behaves differently at different degrees of case fill, non linear.
It kicks some serious..donkey…in my 300 win mag with very light bullets and a mildly compressed load. 120 Barnes tac tx hbn coated hitting 4050 fps over 89.5 grains of superformance in Peterson brass. Just awesome.
It sucked in my 243 with 90 or 100 grain pills and my 300 Winnie with 180s back when I first tried it. Okay velocity but extreme spread worse than anything I have ever seen!!!!
Ball powders give bad extreme spreads as it is when the case fill is much under 100%. Progressive burn rate ball powders are worse I guess.
So find a load and weight that allows for full load density is all I'd really advise.
I used to think it was slower burning than advertised. I know understand it's burn rate is simply hard to pin down because, like RL17, it is a progressive burn rate powder. As such it behaves differently at different degrees of case fill, non linear.
It kicks some serious..donkey…in my 300 win mag with very light bullets and a mildly compressed load. 120 Barnes tac tx hbn coated hitting 4050 fps over 89.5 grains of superformance in Peterson brass. Just awesome.
It sucked in my 243 with 90 or 100 grain pills and my 300 Winnie with 180s back when I first tried it. Okay velocity but extreme spread worse than anything I have ever seen!!!!
Ball powders give bad extreme spreads as it is when the case fill is much under 100%. Progressive burn rate ball powders are worse I guess.
So find a load and weight that allows for full load density is all I'd really advise.