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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a half of grain of powder make that much difference?
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<blockquote data-quote="Derek M." data-source="post: 863205" data-attributes="member: 2693"><p>There are no shortage of opinions on either side of the fence as to whether or not break-in is a necessary procedure or not. In my opinion, there's truly no way to tell because every single barrel and bullet is different. I, for one, do it because I don't believe it hurts the barrel and I've been very pleased over the past 10+ years with all of my rifles and the results of my loads.</p><p></p><p>I don't know anything about Cooper rifles or their barrels. I believe you should put 20-30 bullets down the bore before you take a serious look at load development unless something magical happens during break-in. I did experience this with 3 rifles. My 308/Obermeyer barrel, my 30.06/PacNor barrel, and my 270 with a Broughton-Richards barrel. Correction: 4 rifles, I forgot my Shilen barreled 280</p><p></p><p>The loads through the 30.06 originally shot so well that I had around 5-8 bullets through it and I used the remaining 20 to hunt with and all killed something. Same thing with my 308.</p></blockquote><p></p>
[QUOTE="Derek M., post: 863205, member: 2693"] There are no shortage of opinions on either side of the fence as to whether or not break-in is a necessary procedure or not. In my opinion, there's truly no way to tell because every single barrel and bullet is different. I, for one, do it because I don't believe it hurts the barrel and I've been very pleased over the past 10+ years with all of my rifles and the results of my loads. I don't know anything about Cooper rifles or their barrels. I believe you should put 20-30 bullets down the bore before you take a serious look at load development unless something magical happens during break-in. I did experience this with 3 rifles. My 308/Obermeyer barrel, my 30.06/PacNor barrel, and my 270 with a Broughton-Richards barrel. Correction: 4 rifles, I forgot my Shilen barreled 280 The loads through the 30.06 originally shot so well that I had around 5-8 bullets through it and I used the remaining 20 to hunt with and all killed something. Same thing with my 308. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a half of grain of powder make that much difference?
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