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QL request - 7x57, 139 gr Hornady BTSP (#2825), 22", 52500 PSI

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29 August 2017, 22:00
steyrsteve
QL request - 7x57, 139 gr Hornady BTSP (#2825), 22", 52500 PSI
I hope someone will be kind enough to run this for me. Run with the wide range of powder, please. Thank you in advance.
7x57, 139 gr Hornady BTSP (#2825), 59 grain case capacity, WLR primer, 3.09" OAL, 22" barrel, 52500 PSI


NRA Life Member
DRSS-Claflin Chapter
Mannlicher Collectors Assn
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29 August 2017, 23:55
Lamar
just put 51grs of rl-19 under it with a rem 9-1/2 primer and life will be good.
unless you got an old 93/95 then only put 48.5grs.
30 August 2017, 06:09
steyrsteve
Thanks for your reloading info.
The rifles that will use this info are four modern 7x57's. Most of the reloading manual data is light in lieu of the many older M93 and M95 Mauser actions still in use after 120 years or so of use.
I have reloaded for this great caliber for over forty years now. My go to load is always a healthy dose of H414/W760 but I think I'm in a rut using most always this powder.
Therefore, I am asking for QL data, which, I understand, is fairly accurate, so I can build some modern pressure loads with the variety of powders I currently use.
Also just curious to see where some of my hotter-than-reloading- manual loads fit on the pressure scale.


NRA Life Member
DRSS-Claflin Chapter
Mannlicher Collectors Assn
KCCA
IAA