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Rifles, Reloading, Optics, Equipment
Reloading
Need Help with Velocity/Pressure Spike.
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<blockquote data-quote="Lefty7mmstw" data-source="post: 1852407" data-attributes="member: 48043"><p>Mram10us hit the nail on the head... 86 rounds on an overbore like the 6.5prc is a bit much. </p><p>6.5 prc is a rather fast stepper... I would say you (the OP) are fouling and need to clean. I would also say you (the OP) need to back down a few percent if you are on the edge enough that a bit of extra fouling sends you over the edge on pressure. I've got a buddy running a 300roy with 220 sierra's and 7828; he only cleans when the groups fall off (or he remembers it's been a while- usually my prodding as to whether he's cleaned his rifle this year)... He's never seen a high pressure case from fouling or high temperature. I set him up doing 2750 fps with his 220's even though he could have gone 100 fps faster; the thing is a tank and won't puke no matter the conditions now.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 1852407, member: 48043"] Mram10us hit the nail on the head... 86 rounds on an overbore like the 6.5prc is a bit much. 6.5 prc is a rather fast stepper... I would say you (the OP) are fouling and need to clean. I would also say you (the OP) need to back down a few percent if you are on the edge enough that a bit of extra fouling sends you over the edge on pressure. I've got a buddy running a 300roy with 220 sierra's and 7828; he only cleans when the groups fall off (or he remembers it's been a while- usually my prodding as to whether he's cleaned his rifle this year)... He's never seen a high pressure case from fouling or high temperature. I set him up doing 2750 fps with his 220's even though he could have gone 100 fps faster; the thing is a tank and won't puke no matter the conditions now. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Need Help with Velocity/Pressure Spike.
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