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Rifles, Reloading, Optics, Equipment
Reloading
Pressure "spikes" on Big Magnum Cartridges....
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<blockquote data-quote="kraky" data-source="post: 123621" data-attributes="member: 180"><p><strong>Re: Pressure \"spikes\" on Big Magnum Cartridges....</strong></p><p></p><p>Thanks for taking a shot at my problem but unfortunately we shoot out of nice, cool, shady, shooting shed and the ammo wasn't in the sun. I even found a record where I had loaded the exact same load a year earlier with no pressure problems (with the same lot of powder). I do trust my scale (rcbs1010) and I always double check the scale for the first few rounds against a digital scale so I know it was on the money. Heck with that big of a case even a grain more powder would only result in about 20-30fps. </p><p>I did run a boresnake down the barrel before switching to this batch of ammo. Maybe I stirred something up in there that changed the friction inside the barrel and a near max load became nasty. I'd appreciate any other guesses but I am thinking somehow I got a spike of at least about 10k on the one shell. The primer didn't fall out but I'm thinking it had to be darn close to it and with that big heavy case I had to be way over max.</p></blockquote><p></p>
[QUOTE="kraky, post: 123621, member: 180"] [b]Re: Pressure \"spikes\" on Big Magnum Cartridges....[/b] Thanks for taking a shot at my problem but unfortunately we shoot out of nice, cool, shady, shooting shed and the ammo wasn't in the sun. I even found a record where I had loaded the exact same load a year earlier with no pressure problems (with the same lot of powder). I do trust my scale (rcbs1010) and I always double check the scale for the first few rounds against a digital scale so I know it was on the money. Heck with that big of a case even a grain more powder would only result in about 20-30fps. I did run a boresnake down the barrel before switching to this batch of ammo. Maybe I stirred something up in there that changed the friction inside the barrel and a near max load became nasty. I'd appreciate any other guesses but I am thinking somehow I got a spike of at least about 10k on the one shell. The primer didn't fall out but I'm thinking it had to be darn close to it and with that big heavy case I had to be way over max. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Pressure "spikes" on Big Magnum Cartridges....
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