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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Ultra Mag Info
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<blockquote data-quote="HARPERC" data-source="post: 962442" data-attributes="member: 30671"><p>There are lot of variables with this powder, this bullet weight, and this cartridge. Mixed in with that is the feeling by many, the newer H-1000 is hotter than the old.</p><p></p><p>I went to load data.com and found the following maximum charges and velocities, for 250 grain bullets:</p><p></p><p>1) Berger, 89 grains/2788 fps</p><p>2) Handloader, 90 grains/2645 fps</p><p>3) Barnes #3, 92 grains/2833 fps</p><p>4) Barnes #4, 93 grains/2771 fps</p><p>5) Swift, 93 grains/2777 fps</p><p>6) Lee, 98 grains/2923 fps</p><p>7) Hodgdon, 98 grains/2923 fps</p><p></p><p>I've shot/chronographed the 98 grain grain loads right at 2900 fps. That was quite a while back with an older lot of powder. Nosler doesn't list this powder on their site. </p><p></p><p>I suspect Lee just borrowed from Hodgdon as they are identical.</p><p></p><p>I'll guess and say you're pushing 3000 fps. and are red lined at least, over at worst. I haven't seen a 100 grain listed for 250's in any source over the years.</p><p></p><p>Now that I have some RL-25 on hand, I won't use the H-1000 much in this cartridge.</p></blockquote><p></p>
[QUOTE="HARPERC, post: 962442, member: 30671"] There are lot of variables with this powder, this bullet weight, and this cartridge. Mixed in with that is the feeling by many, the newer H-1000 is hotter than the old. I went to load data.com and found the following maximum charges and velocities, for 250 grain bullets: 1) Berger, 89 grains/2788 fps 2) Handloader, 90 grains/2645 fps 3) Barnes #3, 92 grains/2833 fps 4) Barnes #4, 93 grains/2771 fps 5) Swift, 93 grains/2777 fps 6) Lee, 98 grains/2923 fps 7) Hodgdon, 98 grains/2923 fps I've shot/chronographed the 98 grain grain loads right at 2900 fps. That was quite a while back with an older lot of powder. Nosler doesn't list this powder on their site. I suspect Lee just borrowed from Hodgdon as they are identical. I'll guess and say you're pushing 3000 fps. and are red lined at least, over at worst. I haven't seen a 100 grain listed for 250's in any source over the years. Now that I have some RL-25 on hand, I won't use the H-1000 much in this cartridge. [/QUOTE]
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