7.62x54R surplus reloaded

How would reloading them with balanced powder charges and the same or replacement bullets make them non-corrosive? The primers are the corrosive part and those weren't changed. Unless I missed something there?

I am interested in seeing the results of this experimentation, regardless of corrosive or non.


Mark
Hey Mark,

Yeah it’s brand new PRVI brass and Fiochi primers.
 
Well, things did not turn out at all like I had expected!

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The surplus/surplus combo was all over the place, velocity and grouping. Like 6”+ at 120m and max spread was around 300fps. It wound up much hotter than the factory load too, 2825-3125fps. No pressure signs, but cooking on er.

The CamPro worked much better, 3.5” ish, but still horrible. MV spread was more manageable, max was 2675-2825. Still not great! And not nearly what I had expected. The switch from Berdan primers and the steel cases must make that much of a difference!

Could the primers be that much colder possibly? I have about 500 Ginex primers that often fail to ignite with our powders and with a firing pin that hits softer than the Mosin. Perhaps I should try another small batch using those primers and see what happens…only takes an hour to work some up.

Crazy thing about this is I have loaded these bullets and this powder (20% less volume) into PRIVI cases with normal LR primers for my 303s and they all print really nice groups with that load.

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Back to the drawing board!
 
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Well, things did not turn out at all like I had expected!

View attachment 1087579View attachment 1087582

The surplus/surplus combo was all over the place, velocity and grouping. Like 6”+ at 120m and max spread was around 300fps. It wound up much hotter than the factory load too, 2825-3125fps. No pressure signs, but cooking on er.

The CamPro worked much better, 3.5” ish, but still horrible. MV spread was more manageable, max was 2675-2825. Still not great! And not nearly what I had expected. The switch from Berdan primers and the steel cases must make that much of a difference!

Could the primers be that much colder possibly? I have about 500 Ginex primers that often fail to ignite with our powders and with a firing pin that hits softer than the Mosin. Perhaps I should try another small batch using those primers and see what happens…only takes an hour to work some up.

Crazy thing about this is I have loaded these bullets and this powder (20% less volume) into PRIVI cases with normal LR primers for my 303s and they all print really nice groups with that load.

View attachment 1087583View attachment 1087584
View attachment 1087585

Back to the drawing board!
At least now youve got fire formed brass. What powders do you have on hand for the next load out with the 311 speers? 4064 or varget might be a good place to start. 4895 worked phenomenal in every milsurp I loaded for (especially 303 out of a No 4). Do you have a collet die for 54r?
 
At least now youve got fire formed brass. What powders do you have on hand for the next load out with the 311 speers? 4064 or varget might be a good place to start. 4895 worked phenomenal in every milsurp I loaded for (especially 303 out of a No 4). Do you have a collet die for 54r?
No collet die. But I have Varget and 4895 on hand. I think I have a handful of Speers. I have another 311 150gr flat based bullet as well, plus Sierra pro hunter 180s and the 174gr MkVIIs, and some Hornady 174 RN 311s.
 
No collet die. But I have Varget and 4895 on hand. I think I have a handful of Speers. I have another 311 150gr flat based bullet as well, plus Sierra pro hunter 180s and the 174gr MkVIIs, and some Hornady 174 RN 311s.

Sierra web site has load data for 180gr with varget and 4895.
 
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