Powder Score! Need data......

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  • Last Post 02 February 2019
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Bohica793 posted this 01 February 2019

So I managed to obtain 12+ pounds of SR4759 in the past two days and plan to use this to fuel my military molt actions for the rest of my natural life.  I currently feed a Mosin 91/30, VZ24 8mm Mauser and a No4 Mk1 Enfield .303 using a variety of Accurate 30 cal and Lee 8mm molds.  I have been using IMR4198 primarily and would like to hear suggestions for incorporating SR4759 into these rifles.  Suggestions?

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onondaga posted this 01 February 2019

Page 172, Lyman Cast Bullet Handbook #4,  303 Brit load with the Lee C312-185-1R, START 18 gr SR5759, 1585 fps,  MAXIMUM, 26.0 gr 2100 fps. Use the minimal sizing that will just allow chambering and you will do well.

 

Gary

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dbosman posted this 01 February 2019

Here is a 2001 manual. Rifle data starts on page 47.
http://castpics.net/dpl/index.php/reloaders-reference/powder-company-manuals/14-imr-reloading-manuals/40-imr2001
and
The 2004 manual. Rifle data starts on page 9.
http://castpics.net/dpl/index.php/reloaders-reference/powder-company-manuals/14-imr-reloading-manuals/39-imr2004

 

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Bohica793 posted this 02 February 2019

Thanks for the references.  I have the manual data but was hoping for actual experiences with this powder in these calibers.

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John Carlson posted this 02 February 2019

Check the match results.  Some have likely listed data you can find useful.

John Carlson. CBA Director of Military Competition.

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JeffinNZ posted this 02 February 2019

12+lb!  (Jeff faints)

Cheers from New Zealand

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frnkeore posted this 02 February 2019

You'll find a accurate load, between 18 to 22 gr, in all those calibers.

Frank

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Scearcy posted this 02 February 2019

Frank is correct! I shot 18.5 gr in my 308 and 20 gr in my Springfield as match loads for years.

It is a great powder score indeed and it won't require much load development.  I have shot 4759 in several small calibers also. If memory serves me, it was a very good powder in the 45-70 as well.

Jim

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frnkeore posted this 02 February 2019

Another thing to keep in mind, regarding this powder, is primers.

I've been using it since 1986 and in all my testing, I found that the weaker primers, work best and Rem 2 1/2 or 1 1/2 produced the best accuracy for me, with F150's second.

4759 is the only rifle powder, that I know of, that isn't coated, there for, it easier to ignite it.

Frank

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Bohica793 posted this 02 February 2019

Just went out and shot 18gr and 20gr under a Lee 325-175 in my 8mm.  Where I once thought this gun might be hopeless, I can see that I just didn't have the right load previously.  These two show excellent potential.  Can't wait to try it in my .303.

 

Thanks all.

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