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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New Rifle-High pressure, low velocity
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<blockquote data-quote="Shaidon" data-source="post: 298362" data-attributes="member: 8579"><p>Hey guys, I need some help. Just got my rifle from the smith. Its a 338 edge, stiller predator action with a rock creek barrel. I am shooting the standard load for this rifle, 92 gr H-1000, 300 SMK, CCI 250, and rem brass. I had the smith turn down the reamer a small amount, not sure how much, since I am partial neck turning the brass (removing approx. 70%) and didn't want too sloppy of a chamber. I tried an un-turned load and it is too tight to chamber. It will feed all the way into the chamber but I cant close the bolt. My turned rounds chamber just fine. The problem I am seeing is obvious extractor marks but the bolt does not have any noticeable stick to it. My velocities are right about 2775 on average. It seems to me there is a lot of pressure for this load with that velocity. I took some of my spent cases (not resized or anything after firing) and tried to slide a bullet in by hand. There is quite a bit of pressure but they will slide in with effort. It seems to me this is too much neck tension for fired brass. Could the tighter neck in the chamber be causing the high pressure problem or could it be something else like the barrel being new and needing to break in. Any help would be great. THANKS</p></blockquote><p></p>
[QUOTE="Shaidon, post: 298362, member: 8579"] Hey guys, I need some help. Just got my rifle from the smith. Its a 338 edge, stiller predator action with a rock creek barrel. I am shooting the standard load for this rifle, 92 gr H-1000, 300 SMK, CCI 250, and rem brass. I had the smith turn down the reamer a small amount, not sure how much, since I am partial neck turning the brass (removing approx. 70%) and didn't want too sloppy of a chamber. I tried an un-turned load and it is too tight to chamber. It will feed all the way into the chamber but I cant close the bolt. My turned rounds chamber just fine. The problem I am seeing is obvious extractor marks but the bolt does not have any noticeable stick to it. My velocities are right about 2775 on average. It seems to me there is a lot of pressure for this load with that velocity. I took some of my spent cases (not resized or anything after firing) and tried to slide a bullet in by hand. There is quite a bit of pressure but they will slide in with effort. It seems to me this is too much neck tension for fired brass. Could the tighter neck in the chamber be causing the high pressure problem or could it be something else like the barrel being new and needing to break in. Any help would be great. THANKS [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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New Rifle-High pressure, low velocity
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