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?
Powder Score! Need data......
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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.
Here is a 2001 manual. Rifle data starts on page 47.
The 2004 manual. Rifle data starts on page 9.
Thanks for the references. I have the manual data but was hoping for actual experiences with this powder in these calibers.
Check the match results. Some have likely listed data you can find useful.
John Carlson. CBA Director of Military Competition.
You'll find a accurate load, between 18 to 22 gr, in all those calibers.
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.
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.
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.
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