Can anyone give me advice for reloading the 8X58R Danish Krag cartridge for use in a Swedish RB? I am presently using 40 grains of IMR 4895 behind a 170 grain Speer SP. The pressures still seem to be low but I'm having the occasional misfire with the primer going off but the powder failing to ignite. Can this be because the case is only 2/3 full of powder? Has anyone developed loads for this cartridge that are safe for this rifle?
About the primer failing to ignite the powder I would check that the passage from primer to powder and see if it is not blocked. If not I should change primers /
PerN
quote:
Originally posted by PerN:
The only load I find for 8x58R in my books are in the "Wiederladen" from Dynamit Nobel 5�th ed.
Using the RWS soft point 196gr (=12,7gram)
OAL 77.0mm
Using Rottweil�s powder
R902 min31.0gr, max33.0gr=1837f/s
R903 min33.0gr, max36.0gr=1887f/s
R904 min37.0gr, max 39,5gr=1887f/sAbout the primer failing to ignite the powder I would check that the passage from primer to powder and see if it is not blocked. If not I should change primers /
PerN
PerN,
Thanks for the info. Any idea what IMR powders would be similar to the ones you mentioned? I'm looking on the net for any kind of cross-reference for different powder brands. My local gunstore is limited in what they stock.
These are naturally maximum loads...
19
H4227
Nobel No3
200 Norma
R901 RWS
20
N120 Viht
IMR4198
H322
Reloader 7
21
BL-C(2)
TUBAL2
22
IMR3031
R902 RWS
Nobel No2
23
201 Norma
24
N133 Viht
202 Norma
748 W-W
25
H355
SP10
26
R903
27
IMR4064
28
IMR4895
Nobel No1
H4895
Reloader 12
29
N135 Viht
TUBAL4
30
IMR4320
31
N140 Viht
H380
R907 RWS
Reloader15
TUBAL5
32
H414
TUBAL6
760 W-W
33
R904
34
N150
Nobel No 0
IMR4350
H4350
Tubal7
Good luck/
PerN
Handloader #171, Cartridges of the World, Visier #10 October 1998 and a posting on Grey Beard Outdoors.
I hope this helps
By the way: What is the measured case capacity of the 8x58 R Danish?
Guus Verheijen
I checked to see how much IMR 4895 the 8X58R Danish would hold, still leaving room to seat the bullet. I came up with 60 grains.
I think the data from Cartridges of the World, except for the original military loading, is way too hot for a rolling block action. The first shot I fired from this gun had a load of 52.5 grains of some unknown powder. I say unknown because I bought the ammo already loaded from AmmoDepot. The primer was flattened and the case stretched so bad it would not come within .035 of rechambering. I suspect AmmoDepot was loading per the data in COTW. I pulled all the bullets from the rest of that batch and dumped the powder. Now I'm working up slowly with IMR 4895.
My misfire problem, as has been said, may be due to a relatively cool primer or possible primer orifice restriction. I will have to check that.
Is there inherent danger in firing this cartridge if the case is only 2/3 full? I've heard about the phenomenon of detonation.
As for detonation, that may only occur in very large cases with very small powder charges. I say "may" because in over 50 years of shooting and 40 years of reloading I have never personally experienced this situation, nor have I ever met an honest reloader who has said that he has.
Rim 12,7mm
Case above rim 11,05mm
Case length 58,5mm (including rim)
No shoulder
The brass used in the DN book are reformed from 9,3x72R
So now you know what I almost tricked you with
PerN
I found this page on the net
http://www.jaktwebben.com/Handladdning/Fragor/svar16.html
It is about the 8x58R Danish krag and suggest the load of Normas Alaska 12,7 gram (196gr) and 45gr Norma 202 or 46gr Viht N-140
They also show how you can make the brass from 45-70Gov. Sorry to say the page are in Swedish but there are pictures and numbers that may help you on your way/
PerN
I looked at that page in Swedish. It looks like it has some useful info. I can't read Swedish, or Danish or even German, but I know some folks who will take a stab at it for me. Thanks for the lead.
Gunboat
quote:
Originally posted by gunboat:
PerN,
Any idea what IMR powders would be similar to the ones you mentioned?
This list isn't IMR powders, but Norma and Reloder are available in the USofA.
Ken Howell's book (Designing & Forming Custom Cartridges) lists (page 574):
Rottweil R902 = Norma N203 = Reloder 15
Rottweil R904 = Norma N204 = Reloder 19
Rottweil R905 = Norma MRP = Reloder 22
Norma MRP is about the same as N205
Shooting Times magazine (1988 June, page
12) says the same thing about the Norma
powders and Reloder powders. captn
Henrik
Henrik
[This message has been edited by gunboat (edited 10-20-2001).]
quote:
Originally posted by gunboat:
The saga continues...
I just got back from the range. With 43 grains of IMR4831, about 10 granules of powder are unburned in the barrel after each shot.
But that wasn't the right way to go so now I've loaded 43 gr of IMR 4895 and am using new primers.
This the first reloading I've ever done and I'm going slow and careful so I don't overpressure anything. I'm just starting to get a glimpse of how case volume, bullet weight, and bullet diameter can affect the performance of a given weight of a certain powder.