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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
howa 243 not grouping
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<blockquote data-quote="ssc" data-source="post: 458438" data-attributes="member: 22891"><p>zeroed my howa .243 at 100 yds with federal 75 gr nosler ballistic, and it shot under 1/2" groups. after 7 rounds i stepped out to 200 yards and it shot absolutely horrible. so i cleaned it good and shot 2 more rounds at 200 yds and it shot 3/4". cleaned, shot 2 more; same 3/4" group. i then shot 2 80 grain winchester sp's and they shot 5". i cleaned it again and shot 2 more 80 gr sp's and they hit same hole at 200. so why is when i shoot only 2-4 rounds it starts to open up that much? i was shooting in the vise and let barrel cool 3-4 minutes between shots. gun has 33 rounds through it with brand new nikon on top.</p></blockquote><p></p>
[QUOTE="ssc, post: 458438, member: 22891"] zeroed my howa .243 at 100 yds with federal 75 gr nosler ballistic, and it shot under 1/2" groups. after 7 rounds i stepped out to 200 yards and it shot absolutely horrible. so i cleaned it good and shot 2 more rounds at 200 yds and it shot 3/4". cleaned, shot 2 more; same 3/4" group. i then shot 2 80 grain winchester sp's and they shot 5". i cleaned it again and shot 2 more 80 gr sp's and they hit same hole at 200. so why is when i shoot only 2-4 rounds it starts to open up that much? i was shooting in the vise and let barrel cool 3-4 minutes between shots. gun has 33 rounds through it with brand new nikon on top. [/QUOTE]
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howa 243 not grouping
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