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Ramshot Magnum, Accurate MAGPRO, Norma MRP, Reloader 22 Performance?

I was playing around in QuickLoad this morning and the "123" function put these powders on a list of possibilities. I would like to know how these powders have performed in 600 or 1000 yard F-Class or Benchrest competition. Temperature sensitivity, lot-to-lot variation, ES/SD, pressure surprises, etc??? The list also included powders I am familiar with: N560, IMR-7828SSC, and H4831SC so comparisons with any of them would also be helpful.
Thanks very much.
 
Reloader 22 Performance

Tony -

Howdy !

I DK how much help I might be, but will share what I have found out RL-22....

My wildcat 6mm case has basically same case capacity as
6 X 47.

With my rifle, barrel, brass, bullets loads ect all; RL-22 provides the best accuracy with bullets 80-107gr wt.
In many instances, variations in bullet length ( and boat tail length ) due to differences in bullet wts still allowed for almost the same powder charge whether I shot 95s or 105s.
I was suprised by that.

RL-22 bested ( gorups size ) AA3100, I4831, RL-19, VV560, I7828 & SSC, and Data 85 powder when I shot 80-107gr bullets. ( My barrel is a 1-8 SS 29" Broughton "5-C" ).

As for my trials w/ Sierra vanilla 85gr HPBT, they out-grouped everything... when shot over I 7828 ( 100yd ).
Suprised me.

RL-22 meters ok ( I use a digi scale )

I had no time to chrono this Summer., as we re-located across 4 states.

Notionally, the RL-22 loads struck me as being flat-shooting, and I never felt down on horse-power.

Best of luck in your endeavors.

Regards.
357Mag
 
Tony -

A correction :

When I mentioned bullet wt span of 80 -107, that was a typo.
I meant to write 88 -107.

What I said about the Sierra 85s still stands.

Sorry for the oops !

Regards,
357Mag
 
the reloader line of powders aren't immune to temp changes because of the nitro added to it. the hodgdon extreme powders lack nitro which makes it tolerant of temp changes
 

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