257 Roberts + P loading data?

deerslayer

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Bought some +P brass for my roberts, not sure of what to use for reloading data. Nosler reloading book makes no reference to the +p brass. I would like to load 120gr nosler partitions with the +p Win brass. Any info would be great.
 
Bought some +P brass for my roberts, not sure of what to use for reloading data. Nosler reloading book makes no reference to the +p brass. I would like to load 120gr nosler partitions with the +p Win brass. Any info would be great.


P+ brass is used in modern 257 Roberts actions and most all of the data I have seen in newer manuals is for this brass. FS
 
Use regular .257 Roberts data. It's the same brass with a different headstamp. Stamped '+ P' because some ammo makers(Winchester, obviously, was one of 'em.)loaded hotter ammo in the late 80's. Only done to differentiate between their +P ammo and their regular loads. All +P stamped brass, nearly all is handgun brass, is stamped that way for the same reason. The brass isn't different.
The 120 grain bullet will do nicely.
 
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