Does anyone have some loads for the 338 Lapua with H 50 BMG powder, 250gr and 300gr bullets. I have not been able to find any anywere. Any and all help would be greatly appreciated.
YOu will not get alot of load data because H-50BMG is WAY to slow burning for the 338 Lapua, even with the 300 gr SMK.
About as good as it gets is H-1000 for the 300 gr SMK and for the 250 gr you will be get best results with H-4831 and H-1000.
YOu will not be able to get up to good working pressures with H50BMG in the Lapua and you will get alot of carbon fouling because of the very low pressures. Velocites will also be quite slow.