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Hunting
Long Range Hunting & Shooting
FINALLY Got to Shoot My 338 Ultra Mag.
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<blockquote data-quote="Coyboy" data-source="post: 383794" data-attributes="member: 3733"><p>Tarey, How have you been sizing the brass? and are these groups all on new brass or once fired?</p><p></p><p>The reason I ask, I was doing load development last week for a 300 wsm on a #5 contour, with 180gr. NAB. They were all loaded with new brass and h4350 and h4831sc were yielding 1-1.5" groups. I tried one load with 190 SMK with the same powder and they went into 3/4". So I figure the gun has to like somthing. I measured cases just behind the shoulder and the new ones were about .010" under sized from spec. So I thought I would FLS and just bump the shoulder on the once fired brass. I loaded up 5 rounds exactly the same as the loads that shot 1-1.5" with the h4831sc and those five on once fired brass went into .515" go figure. </p><p></p><p>Have you given H1000 a try yet?</p></blockquote><p></p>
[QUOTE="Coyboy, post: 383794, member: 3733"] Tarey, How have you been sizing the brass? and are these groups all on new brass or once fired? The reason I ask, I was doing load development last week for a 300 wsm on a #5 contour, with 180gr. NAB. They were all loaded with new brass and h4350 and h4831sc were yielding 1-1.5" groups. I tried one load with 190 SMK with the same powder and they went into 3/4". So I figure the gun has to like somthing. I measured cases just behind the shoulder and the new ones were about .010" under sized from spec. So I thought I would FLS and just bump the shoulder on the once fired brass. I loaded up 5 rounds exactly the same as the loads that shot 1-1.5" with the h4831sc and those five on once fired brass went into .515" go figure. Have you given H1000 a try yet? [/QUOTE]
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FINALLY Got to Shoot My 338 Ultra Mag.
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