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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 rum throat fouling
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<blockquote data-quote="shortgrass" data-source="post: 1074270" data-attributes="member: 24284"><p>It's problems like this that make a bore scope "worth its weight". Is it carbon build up or is it fire cracking (or both)? A close up look would answer that question. Just as an added thought, most barrels I see that the owner wants "set-back & re-chambered/head spaced" are way past that. They wait too long. I had a Hart MTU contour bbl. chambered in 6.5mm x .300RUM come to me with a full length bbl. shank that had some serious throat erosion/fire cracking. I cut 3 3/16" off of it, threaded it, and chambered it in .264 Win. Mag. The cracking was still visible ahead of the chamber, but the 'cracks' hadn't started to 'curl' into the bore, yet. I can't help but wonder how many more rds. the guy got out of it and what kind of accuracy he was getting. If it'd have been mine, with the amount of cracking in it, I doubt I'd have re-chambered it for the cost. The point, if setting back is 'in the cards',,,,, don't wait too long. Especially if it's a high intensity rd.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 1074270, member: 24284"] It's problems like this that make a bore scope "worth its weight". Is it carbon build up or is it fire cracking (or both)? A close up look would answer that question. Just as an added thought, most barrels I see that the owner wants "set-back & re-chambered/head spaced" are way past that. They wait too long. I had a Hart MTU contour bbl. chambered in 6.5mm x .300RUM come to me with a full length bbl. shank that had some serious throat erosion/fire cracking. I cut 3 3/16" off of it, threaded it, and chambered it in .264 Win. Mag. The cracking was still visible ahead of the chamber, but the 'cracks' hadn't started to 'curl' into the bore, yet. I can't help but wonder how many more rds. the guy got out of it and what kind of accuracy he was getting. If it'd have been mine, with the amount of cracking in it, I doubt I'd have re-chambered it for the cost. The point, if setting back is 'in the cards',,,,, don't wait too long. Especially if it's a high intensity rd. [/QUOTE]
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300 rum throat fouling
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