Re: US 869 and 338 Lapua
I have not used it in the Lapua but have tested it in the 338 Kahn(338-378 Wby with 35 degree conventional shoulder). In the Kahn, it works fine with 300 gr bullets but for anything lighter its really to slow burning.
In the Lapua with its nearly 20 gr smaller capacity, you will fine that it is far to slow for top velocity potential. It may be very accurate and consistant but you will get much higher velocity performance with powders such as Rl-22, Rl-25 and retumbo.
Comparing a 1-9 to a 1-11 will make very little difference in end performance concerning this powder.
Again, I would say its to slow for this application. Not that it would not work but it is not the best choice for this combo.
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