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Concentricity Question
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<blockquote data-quote="Deputy819" data-source="post: 1401601" data-attributes="member: 98025"><p>[USER=99729]@dmoon[/USER] </p><p>The only thing I've changed is bullet selection as of last week. Bought a box of Sierra 100gr GameKings as a "Hail Mary". By comparison the Sierra's are a bit "beefier" at the ogive than Berger, Nosler and Speer. Maybe this rifle will like Sierra's better as it does NOT seem to shoot long for caliber bullets consistently. I've performed 1 OCW test with the Sierra's keeping COAL the same at .020 off the lands (I'll post a pic of those results). As per the velocity and numbers being consistent between 1/4" group and 4" group (with Speer 100gr boat tails) I checked my log book and they are as follows:</p><p>45.9 gr IMR 4451 BR2 Primers</p><p>3287</p><p>3289</p><p>3298</p><p>Yielded a .679" group at 200 yards.</p><p>Loaded again for confirmation</p><p>3284</p><p>3286</p><p>3277</p><p>Yielded a 4" group at 200 yards.</p><p>Ever so slightly less velocity, but not enough to make such a huge difference I wouldn't think??</p></blockquote><p></p>
[QUOTE="Deputy819, post: 1401601, member: 98025"] [USER=99729]@dmoon[/USER] The only thing I've changed is bullet selection as of last week. Bought a box of Sierra 100gr GameKings as a "Hail Mary". By comparison the Sierra's are a bit "beefier" at the ogive than Berger, Nosler and Speer. Maybe this rifle will like Sierra's better as it does NOT seem to shoot long for caliber bullets consistently. I've performed 1 OCW test with the Sierra's keeping COAL the same at .020 off the lands (I'll post a pic of those results). As per the velocity and numbers being consistent between 1/4" group and 4" group (with Speer 100gr boat tails) I checked my log book and they are as follows: 45.9 gr IMR 4451 BR2 Primers 3287 3289 3298 Yielded a .679" group at 200 yards. Loaded again for confirmation 3284 3286 3277 Yielded a 4" group at 200 yards. Ever so slightly less velocity, but not enough to make such a huge difference I wouldn't think?? [/QUOTE]
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