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one of us |
is there a typo error on your thread? 4895 and 4595? just checking. Good question. thanks for asking. jameister | |||
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one of us |
That is why one should always start with less power and work up watching for presure | |||
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<GunGeek> |
Yes, it was a typo. It should have been H4895 in both cases. | ||
one of us |
GunGeek - Just reading an article last nite in April 2002 Handloader by Barsness about efficient cartridges, which the 9.3x62 obviously is. I remember seeing some data in there for 4895 (don't remember which version) and 286 grainers. I think they were in the range you mentioned. I'll check it out tonite and see what they were, exactly. R-WEST | |||
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one of us |
Once again, I stand corrected. Gotta stop relying on that memory, like the Dr. told me Home now, with the Barsness article spread out before me, he shows 53 IMR4895/286 "X"/CCI 200/Norma brass for 2,390 FPS (CZ550 w/23.6" barrel). He also lists 56 I4895 with 286 Partition, all other components the same, for 2,382 FPS. R-WEST | |||
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one of us |
quote:Flip, I wholeheartedly agree EXCEPT I am not as confident in my ability to recognise excessive pressures as some. The suggested red line for 9.3x62 is in the region of 49kpsi. I don't think one gets any indication of excessive pressure at this level. Sticky bolts = 65kpsi plus? Primer cratering is notoriously unreliable. I personaly wouldn't go above the factory book charge weights. | |||
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<GunGeek> |
R-West, thanks for taking the time to look up the article. I appreciate everyone's help. | ||
one of us |
4895 is one of the powders wherein IMR and H are the same burning rate and pressure state....in other words the same powder.... I have shot the 58 gr. load in my two 9.3's without a problem, but I chose 60 grs. of H414 and 58 grs. of RL-15 with the 286 and 300 gr. bullets...I use 56 grs. of FL-15 with the 320 ge. Woodleigh, but as with any printed load start 10% below and work up a grain at a time...These are my max hunting loads for my rifle, perhaps to hot for others rifles. | |||
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one of us |
I must qualify that my guns are either Mauser actions of known quality or Win. M-70 or 54's and I have no problem shooting them at 55,000 PSI | |||
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