8x58r

[brice4570]

Looking for a starting load using h4895 any help greatly appreciated

[MOA]

What are you shooting this cartridge in? Boolit your using?

[brice4570]

Rolling block. 205g cast

[MOA]

You should send a PM to Dutchman. He's got extensive experience with the 8x58RD and loads for it.

[brice4570]

Thanks haven't used this forum much will try

[Dutchman]

As a rule, though not absolute, I don't supply load data to people new to the forum. Considering all the variables involved it would be imprudent to do so without due diligence. My experience with 8x58RD has been limited to cast bullet loads.

Early on, couple decades ago, I extrapolated data using Reloder 7 and proceeded to bang the gong @ 200 yds but in doing so noted excessive (IMO) case obturation. I deemed that load as being too much for a rolling block and I will never share that load data.

Loading data for 140 year old firearms is an exercise in caution. Safe to say extreme caution. There is very little room for error when that firearm receiver is right in front of your face and you're experimenting with previously unknown power levels. Rolling blocks ~do~ come apart and are very capable of killing the shooter. I will not assist in that endeavor for anybody.

This data below has been shared before.

Swedish Rolling Block Sporter 8x58RD.

160gr 323470 g/c .324"
XXgrs Rx7
1- 1964 fps
2- 1883 fps
3- 1915 fps
4- 2040 fps
5- 2011 fps
avg 1963 fps
157.2 fps extreme spread
65.06 stand deviation
I consider this load to be too hot for this
rifle action.


7-8-06
160 grain 323470 26 grains of Rx7
*safe load; recommended*
1. 1513 FPS
2. 1755 FPS
3. 1759 FPS
4. 1671 FPS
5. 1697 FPS
6. 1657 FPS


220gr RN g/c 323471 .324"
22 grs SR4759
1- 1571 fps
2- 1594 fps
3- 1573 fps


160 gr g/c 323470 .324"
12 grs Unique
1- 1395 fps
2- 1400 fps
3- 1344 fps

Whatever load data you use start low and work up. That simple and ageless advise serves the great purpose of keeping you alive a little longer. The link below has the most well researched information on 8x58RD.
Pay attention to the cautions....

Historical and Experimental Investigations of the Pressure Characteristics of the
8x58 Rimmed Danish Cartridge
By
Galen R. Burgett
Spearfish, South Dakota USA
© February 9, 2009
http://dutchman.rebooty.com/GB8x58RD.html

Catastrophic Failures of Rolling Block Rifles
http://dutchman.rebooty.com/RBfailure.html

"The shooter was killed when the breechblock split in two and half lodged in his skull behind his right eye."