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wildcat junkie,

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8x57 ..24" barrel..200gr Nosler Partition.. * 50.1gr IMR 4895 2713fps @ 60000psi

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I just posted somewhre else:
"8x57 .. 29" barrel ... 200 gr Match King... 47 gr IMR4895 2630 fps"

and I got comments like:

" Clark, that's real nice, but remind me to never shoot any of you're reloads! Nevermind, I think I can remember!"

"Your reloading practices are just plain unsafe. Post all you want as this is a free country but do us all a favor and don't post your recipes."


I AM glad this is a free country and we can develop loads, post them, and call each other "unsafe".

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Here is the rest of Clark's post about his reloads.


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Win 8x57 brass, WLR primers, seated with RCBS, 47 gr. IMR4895 bulk all loads were seated so long that unfired extraction resulted in spilled powder:
n) 200 gr. Sierra Match King, new brass, 3.625" with Sinclair 30 cal nut, 1" 5 shot group at 100m [first 4 shots were 1/2" and I made the whole range stay hot to wait for my 5 th. shot], flattened primers
2618, 2633, 2649, 2623, 2650, 2626, 2638 fps



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Spilled powder, and flattened primers! That and Clarks past reloading post's, are the reason for my comment's.

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Where does the 60,000 psi threshold come from?

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Westernhunter, asdf came up with the idea of using a chronograph for calibrating the pressure device already.

I strongly advise not do go this lane as it is a dangerous one.

With milsurp and factory ammunition, muzzle velocity mostly is the product of an unknown powder's combustion.
Using a chronograph, the shooter might get the impression to have detected the secrets of the powder just by applying a sophisticated technical procedure.

He has not, as the burn characteristics of powders are too different from each other: while a slow powder has a flat pressure curve, a fast powder has a (dangerous) steep one.

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Right you are! I must add emphasis to the fact that I view the chronographed millsurp ammo as "MAXIMUM" loads and that was very likley done with powder developed especially for said cartridge. As with reloading for any gun, ALL load development precautions and methods are still applicable.

There are some exceptions that allow one to safley load "beyond the norm" and gain exceptional velocities. One is the use of newly developed powders, and then there is the rare "fast barrel" that seems like it had a magic wand waved over it and excells with almost any load. But in my humble opinion, the most frequent occurence of "exceptional velocity" outside of the norm is usually going to be accompanied with exccesive pressure which can be either immediatley apparent or hidden.

All rifles are individuals and some variation is to be expeted. This fact forces all manufacturers of ammunition to err on the side of caution a wee bit which also can give handloaders an edge. But I agree that the 3000 fs + 180 grain load is most likley being done with concealed excessive pressure and eventually something is going to give. You dont want your head next to it when it does..