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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What in the world is this?
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<blockquote data-quote="Gregg C" data-source="post: 3027104" data-attributes="member: 103471"><p>Working on a puzzle with 33XC. Try to keep it short.</p><p>Ran a pressure ladder awhile back. Picked a load, going to run some thru it, start playing with seating depth. Ladder showed 121 grains LRT under 300gr SMK to be max in my rifle, at 3243fps. Loaded up 40 rds at 118.5, looking for somewhere around 3100ish, and off I went.</p><p>First shot, 3208, hard bolt lift, smeared case. 2 more showed similar results. Stopped. Pulled bullets, dumped and weighed charges, no surprises there, 118.5. However, I discovered I hag about .009 of interference fit between case out of neck bushing and loaded neck. </p><p>Here is the reason of this post, tho. Went into chamber with bore scope looking for carbon ring. What I found has me puzzled. Any ideas?[ATTACH=full]541336[/ATTACH]</p></blockquote><p></p>
[QUOTE="Gregg C, post: 3027104, member: 103471"] Working on a puzzle with 33XC. Try to keep it short. Ran a pressure ladder awhile back. Picked a load, going to run some thru it, start playing with seating depth. Ladder showed 121 grains LRT under 300gr SMK to be max in my rifle, at 3243fps. Loaded up 40 rds at 118.5, looking for somewhere around 3100ish, and off I went. First shot, 3208, hard bolt lift, smeared case. 2 more showed similar results. Stopped. Pulled bullets, dumped and weighed charges, no surprises there, 118.5. However, I discovered I hag about .009 of interference fit between case out of neck bushing and loaded neck. Here is the reason of this post, tho. Went into chamber with bore scope looking for carbon ring. What I found has me puzzled. Any ideas?[ATTACH=full]541336[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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