The Accurate Reloading Forums
A little 8mmX57mm doen load info
02 July 2009, 20:39
bartscheA little 8mmX57mm doen load info
Mod 98, Belgian made for Columbia, Scout sporterized, very dark bore 1 1/2 power forward mounted pistol scope.
S&B cases, #34 primers,31gr. AA2015
150gr FMJ, crimped, oal=3.185 velocity around 2000 fps.Mild, unburned powder,1 1/2" 7 shot group at 50 yds.
125 gr psp., oal=2.975, no speed info., a little greater unburned powder, 3/4" 8 shot group at 50 yds.
175gr psp. 31.4gr aa2015-mild some unburned powder.32 gr,same.32.3gr. near same.32.7gr. mild not much unberned powder.33.3 gr.mild, 33.9gr. still very mild. Oehler battery pack went dead.The estimated 33.9gr. load was close to 2200 fps. The group from all six loads was better than 2 1/2" at 50yds. The poi channge from the 31.4gr load to the 33.9gr load was about 2". 
roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
Was the thought to find a reduced accurate load?
Sorry, had to come back to edit, kids!!
I use Gas Check cast lead for reduced, vermin, target loads. 8x57 I use a 170gr & 42gr IMR4064 or 4320. They run about 2000FPS++. No leading issues. I also load cast lead GC for 6.5x55 for the same reasons. My .323 175gr bullets are chugging along at 2750fps for hunting, 150gr at 2900fps. 200gr are the slow ones at 2600fps.
03 July 2009, 23:20
bartschequote:
Originally posted by Jpat:
Was the thought to find a reduced accurate load?
Yes, but I had no info in this area on aa2015 in the 8X57.Wanted to see what a real light load would do and build up fron there. 2015 falls between 4198 and 3031; not slow or super fast burning.
obviously with the light loads the unburned powder indicates that sufficient pressure and temperature were not achieved. It appears that with the heavier 175gr. bullet and 33.3gr. of powder +, total burn was approached.
The energy most likely exceeded that of the 30-30 above 32 gr and the 175 gr. bullet.
Since data like this on the 8x57 is rare I thought I'd share.
roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
Thanks for sharing! That is some fast burning powder you were trying, in my book. Maybe 2230 or 2460 would have worked out much better. Where did you find 125gr .323 bullets? Those could be fun stuff.
04 July 2009, 06:25
bartschequote:
Originally posted by Jpat:
Where did you find 125gr .323 bullets? Those could be fun stuff.
They were Hornady's.
roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
From Where?? Since it is only 2 of use maybe a drink is in order!!
04 July 2009, 18:43
Bill/OregonThat 125=grain load looks promising and useful.
There is hope, even when your brain tells you there isn’t.
– John Green, author
04 July 2009, 21:16
bartschequote:
Originally posted by Jpat:
From Where?? Since it is only 2 of use maybe a drink is in order!!
Well to my surprise they are no longer listed. They are listed on a chart I have hanging up,but I know it is more than 6 years old. The ones I used were the last I had and were probably more than 10 years old.Sorry, jpat.
roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
No need to be sorry! I wonder if they were for the 8mm Kurtz. I am going to try some 120gr .308 in a 7.5x53 for a 1945 M36 MAS, 7.5x55 K31, and 7.62x51 nato FR8. You got me motivated again. Maybe I should pick up some 123gr .311 for .303 and 7.62x54r while I'm at it. Too many calibers, too little time!