257 Roberts +P Brass


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wby_shooter
February 18, 2006, 01:10 AM
How important is it to use +P brass with a hotter load?

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hoghunting
February 18, 2006, 01:53 AM
I have a sporterized Arisaka in 6.5mm/.257 roberts and the only ammo for it is to reload. The 6.5 mm uses bullets that are .264 so the neck is expanded only .007. My reloads use a heavier bullet than the .257 and the velocity is about 100 fps faster than the .257+P. I am using Remington brass that is marked .257 Roberts, there is not a +P on the cases. Some of the brass has been reloaded 7 times and there is no notable (measured) thinning of the brass around the casehead.

I would buy Remington brass for the .257 Roberts and load it to +P levels and feel very safe. Hope this helps.

thatguy
February 18, 2006, 09:39 AM
I have never heard of +P rifle brass. Is there such a thing?

I would not recommend trying to soup up any rifle cartridge. If the caliber you have isn't fast enough or powerful enough for you buy a another gun in a faster or more powerful caliber.

jerkface11
February 18, 2006, 09:46 AM
.257 roberts has +p loadings but from what i understand the brass isn't any different. In fact i don't think you can find any NON +p loadings anymore.

wby_shooter
February 18, 2006, 07:02 PM
I have never heard of +P rifle brass. Is there such a thing?

I would not recommend trying to soup up any rifle cartridge. If the caliber you have isn't fast enough or powerful enough for you buy a another gun in a faster or more powerful caliber.

There are some brass stamped +P for the 257 Rob. The thing is that this cartridge was originally so under power in factory loads that it doesn't get off its knees until it's handloaded.

thatguy
February 18, 2006, 10:43 PM
I am not familiar with this cartridge but my advice is to always stay within the recommendations of the major reloading manuals. If they list hot loads they have tested and approved then I say go ahead.

CB900F
February 18, 2006, 11:45 PM
Thatguy;

I suggest then that you pick up a copy of Speer #13. Page 190, 257 ROBERTS + P is the header. There is a page of comment on the cartridge which goes into the + P issue.

900F

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