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  • 3 weeks later...

Seeker

Thank you for the link.

 

Unfortunately not, many of those pieces of software have not been updated in a good few years.

Think I'm going to have to purchase a copy of QL or just keep paying for 145gr PPU ammunition which they sell at Bisley for this very reason/purpose.

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  • 1 month later...

Jaymo - sorry I did not get back to you - as it was nearly 3 weeks before you replied I had assumed you had found the answer to your question and therefore I binned that info + I do not visit this group often mainly because of keyboard know alls!!!

 

So........Started again.

Info provided by you:

 

300 Win Mag (assumed the SAAMI variety) 26" barrel shooting 178 Hornady A Max using H4350 or RS70 with criteria >4500 j 1000 m/s and 7000 j and 1000 m/s

 

with COL at 3.340". Quickload calculations do not take into account primers so the following could have a minimal bearing of the figures. Bear in mind max pressure for this case is 64000 psi

 

H4350

 

66.84 gr = 4500 j with 883 m/s giving 52710 psi

 

Re 7000 j and 1000 m/s 71.38 gr = 5051 j 936 m/s giving 63707 psi

 

RS70

 

70.5 gr = 4494 j with 883 m/s giving 45730 psi

 

Re 7000j and 1000 m/s 78.12 gr = 5501 j 977 m/s giving 63900 psi

 

It must be born in mind that with effect from around June next year certain American powders will be subject to new Euro laws regarding powder additives and the signs are that just about all Hodgson powder may fail therefore we will no longer be able to import them. Having said that I give below two more alternatives that would still be OK under the Euro rules.

 

Alliant Reloder 25

 

73.1 gr = 4489 j with 882 m/s giving 44754 psi

 

Re 7000 j and 1000 m/s 81.2 gr = 5533 j 979 m/s giving 63990 psi

 

And the one I personally would put near the top of my list:-

 

RS62

 

67.7 gr = 4497 j with 883 m/s giving 49180 psi

 

Re 7000 j and 1000 m/s 73.72 gr = 5230 j 952 m/s giving 63918 psi

 

As with all reloading please start lower than the above weights by at least a couple of grains and remember case prep is 70% towards accuracy.

 

Peter

Edited by dicehorn
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