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Rifles, Reloading, Optics, Equipment
Gunsmithing
260 in a 6.5cm chamber?
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<blockquote data-quote="MNbogboy" data-source="post: 2031934" data-attributes="member: 18849"><p>Seems that several are playing with this one. Ive run the reamer in approx. .080 deeper in the CM. 260, 7-08 or even 08 brass cleans up the shoulder to 30° in the CM die. Trim to 2.004, while maintaining CM neck length. After one fireform for body diameter the capacity increases approx. 2-1/2 grains. CM die works fine.</p><p></p><p>Done this on three barrels, a shilen 26", a shaw 19", & a stock savage 22". With limited testing with only h4350 & h4831sc it definitely shows an advantage of reaching original CM nodes in a variety of bullets with less pressure.</p><p>Other advantages are obviously a "no problem" wildcat with no special reamer, dies or fireforming.</p><p></p><p>Btw: named mine 260 CML (creedmoor long)...lol</p></blockquote><p></p>
[QUOTE="MNbogboy, post: 2031934, member: 18849"] Seems that several are playing with this one. Ive run the reamer in approx. .080 deeper in the CM. 260, 7-08 or even 08 brass cleans up the shoulder to 30° in the CM die. Trim to 2.004, while maintaining CM neck length. After one fireform for body diameter the capacity increases approx. 2-1/2 grains. CM die works fine. Done this on three barrels, a shilen 26", a shaw 19", & a stock savage 22". With limited testing with only h4350 & h4831sc it definitely shows an advantage of reaching original CM nodes in a variety of bullets with less pressure. Other advantages are obviously a "no problem" wildcat with no special reamer, dies or fireforming. Btw: named mine 260 CML (creedmoor long)...lol [/QUOTE]
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260 in a 6.5cm chamber?
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