Couple of questions here…

H

herbeapuce

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Couple of questions here…

Hi

-I looked at a lot of loading data an it seems every manufacturer of either powders or bullets have the own recipes for reloading their stuff. Is it safe to only factor the weight of the bullet and not the make/model ? I mean can I exchange a 100g nosler for a 100g hornady , providing I start in the medium pressure range, and work it up from there ?

-About Barnes bullets…..I found their recipes are always a bit less than the regular copper/lead bullets. Again in this case, can I charge with a competitor recepie ? and again being careful to start in the mid pressure range.

-Also I was looking at some very old recipes for 1964 (sierra I believe). they would only say 4831, the would not tell if it was a IMR or a H powder. is this ok ? they did talk about IMR and H powders in the book, but did not mention it in their recipes... Old timers please, is this how it use to be?
is it safe?

Thanks



Stef
 
The 4831 from back in 1964 is not even close to the modern 4831, which would be Hodgdon.

In 1964 it was milsurp powder re-sold by Bruce Hodgdon. Today the H4831 is made in Australia..and has a differing burn rate than it's 1964 name sake.


I like to take data from numerous sources, and find a relative starting point for loads. Trying to interpolate, or extrapolate data from a single source will one day give you greif.
 
use the powder they say, dont use X amount of a powder thinking it will be ok as a replacement for another.
 
if you are using the Start loads, you can switch data from the Hornady 180 to the Sierra, for a similar bullet. but the Barnes bullet is copper and much longer for a given weight. This uses up case capacity and requires unique loading data.
 
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