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Rifles, Reloading, Optics, Equipment
Reloading
Hard bolt pull?
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<blockquote data-quote="okie man" data-source="post: 1923457" data-attributes="member: 75071"><p>Guys,</p><p></p><p>I got my Delta 5 shooting pretty good with the 6.5 CRDM barrel. Today at the range, however I had a bit of an issue on occasion pulling the bolt back. No heavy lift. It would happen about every 3rd or 4th round. I'm running 4th cycle gunwerks brass and I'm bumping .002 to 1.504" on the Sinclair comparator. No signs of pressure on the brass, no cratered primers, etc. Headspace is good. This is a 37.2 grain charge under a 143 ELD-X and I'm .003 off the lands. I'm wondering what gives? I have a theory that maybe the neck turning striations have created more friction in the throat upon expansion but I didn't have any loads that were un-turned to test this theory. Maybe that or dirty bolt raceways or mortises? Any ideas? It didn't seem to do this as a .308. Thanks in advance for any insight.</p></blockquote><p>so first off, 4 firings on brass. Did you anneal, trim and chamfer cases after any of the firings? Second, you are running only .003 off the lands. How you determine This number? I myself haven't found a Hornady bullet you could consistently seat to that close without adjusting my seating die every bullet. You said you're using 37.2 grains of powder. Which powder? You said you're getting no signs of pressure, sticky cases are a sign of over pressure. Being it's not a consistent sign I would believe there's something in your loading process that's not consistent or you would or would not be seeing inconsistent signs of problems. </p><p>here's my advice! First off is this a new barrel on your gun? If so why are you shooting 4 time fired brass in it? Get new brass and start fresh. Second is make sure your powder , bullets, primers and your data match. Check your brass for proper trim length after sizing. Check all brass for proper function before moving to each step in loading process except powder charging of coarse! Next thing I'd do is seat the bullets at minimum.010 off lands. </p><p>I typically am not a gambling man but I'd bet money your issues are a result of your reloading practices and not a equipment/materials issue. Most likely it could be as simple as getting new or annealing and trimming your brass. Seating your bullets a little deeper. Maybe even cleaning your barrel!</p><p>[/QUOTE]</p>
[QUOTE="okie man, post: 1923457, member: 75071"] Guys, I got my Delta 5 shooting pretty good with the 6.5 CRDM barrel. Today at the range, however I had a bit of an issue on occasion pulling the bolt back. No heavy lift. It would happen about every 3rd or 4th round. I’m running 4th cycle gunwerks brass and I’m bumping .002 to 1.504” on the Sinclair comparator. No signs of pressure on the brass, no cratered primers, etc. Headspace is good. This is a 37.2 grain charge under a 143 ELD-X and I’m .003 off the lands. I’m wondering what gives? I have a theory that maybe the neck turning striations have created more friction in the throat upon expansion but I didn’t have any loads that were un-turned to test this theory. Maybe that or dirty bolt raceways or mortises? Any ideas? It didn’t seem to do this as a .308. Thanks in advance for any insight. [/QUOTE]so first off, 4 firings on brass. Did you anneal, trim and chamfer cases after any of the firings? Second, you are running only .003 off the lands. How you determine This number? I myself haven’t found a Hornady bullet you could consistently seat to that close without adjusting my seating die every bullet. You said you’re using 37.2 grains of powder. Which powder? You said you’re getting no signs of pressure, sticky cases are a sign of over pressure. Being it’s not a consistent sign I would believe there’s something in your loading process that’s not consistent or you would or would not be seeing inconsistent signs of problems. here’s my advice! First off is this a new barrel on your gun? If so why are you shooting 4 time fired brass in it? Get new brass and start fresh. Second is make sure your powder , bullets, primers and your data match. Check your brass for proper trim length after sizing. Check all brass for proper function before moving to each step in loading process except powder charging of coarse! Next thing I’d do is seat the bullets at minimum.010 off lands. I typically am not a gambling man but I’d bet money your issues are a result of your reloading practices and not a equipment/materials issue. Most likely it could be as simple as getting new or annealing and trimming your brass. Seating your bullets a little deeper. Maybe even cleaning your barrel! [/QUOTE]
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Hard bolt pull?
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