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7 Οκτ 2024 · US869 is a dense propellant that allows the shooter to use enough powder to create maximum velocities in cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum and others.
18 Νοε 2005 · If you look at the 300 RUM data, except for the 200 grain load (using that bullet it's worthless data anyway), those are starting load pressures. The best example is the 220 grain load. From their current manual: Starting load for H870: 101 grains, 2818 fps, 54,800 psi. Max load for US869: 101 grains, 2875, 55,200 psi.
.300 Winchester Magnum (Hodgdon US-869 Rifle Data) reloading data with 6 loads. Using bullets from Speer MT-SP, Nosler Partition, Sierra RN. Powders include Hodgdon.
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14 Οκτ 2007 · 869 is a spherical powder. It's very slow but it loads to heavier, high density loads. Very similar to Superperformance powder, in that SP is a more modern derivative of the same concept.
1 Νοε 2017 · The Speer book listed data for it and I would like to give it a try and save other powders for my primary rifle. Google search of reviews range from great works well, temp sensitivity issues, too slow of a powder for the caliber. I figure worst case I try a few loads and see if the rifle likes it.
16 Νοε 2005 · Rifles, Bullets, Barrels & Ballistics. OK, who's got the skinny on this powder? All I've got so far is this: http://loaddata.com/articles/PDF/New%20Powder%20From%20Hodgdon.pdf It sounds like...