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I ran across some load data in a gun mag last year and loaded it up. The max load for the 125 Sierra HPFP was 33 grains of H322. It shot well, tight groups but the extraction was sticky on some.

I am starting over with the min load of 31 grains of H322.

One of the older manuals I have starts the 125 Sierra HPFP at 34 and goes up to 37grains of H322. Glad I didnt do that!

Hodgdon doesnt even list H322 for the 30/30 anymore. Is H322 a poor choice for the 30/30 case? Any thoughts?
PB
 

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I have a good bit of H-322, have played with it a little, and have looked up a good bit of data for it. Data is all over the place, and my guess is that there is more lot to lot variation than in other powers. Some folks suggest the use of magnum primers.

Ken Waters used it in the .30-30 in his Pet Loads series and used a top of 33.0 grains with 125 grain bullets.

I'm not a .30-30 shooter so I have no specific info for that use, but I treat it as a faster version of 3031 and best used with light-for-caliber bullets.
 
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