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DDouble
.300 member

Reged: 17/02/06
Posts: 127
Loc: Brazil

help in reloading the 470 with unknown powder
06/07/09 11:16 PM

Poste this elsewhere, but I do need help with .470 reloading. I am in south america and cannot bring powder and primers into the country easily (a major understatement)

I have a few old Remington 91/2M primers and a single base powder CBC (magtech). This is their slowest burning powder and is called CBC 124 used in 300wm and 7mRM.

Today I tried a few 500 grains woodleights throug my cronograph:

90 grains +12 grains filler = 1747 fps

95 grains +10 grains filler = 1801 fps

Federal factory = 2049 fps

Question 1: is this remington primer much worse than the 215?? So that I will never get good results??

Question 2: was 50 fps to little for a 5 grain increase in powder? Is this powder no good?

Question 3: as I increase the charge, how much can I compress the powder?

--------------------
Ddouble

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Subject	Posted by	Posted on
help in reloading the 470 with unknown powder	DDouble	06/07/09 11:16 PM
Re: help in reloading the 470 with unknown powder	DarylS	07/07/09 12:33 AM
Re: help in reloading the 470 with unknown powder	DDouble	07/07/09 09:41 PM
Re: help in reloading the 470 with unknown powder	bwananelson	08/07/09 10:50 AM
Re: help in reloading the 470 with unknown powder	bwananelson	07/07/09 12:32 AM

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