8x57R/360 Nitro Express

03 November 2002, 04:51

aHunter

The RWS reloading manual has data, for .318 bullets of course, and only RWS/Bofors powders. Still one can should last long with such a gun.

If you are interested, mail me, I will post data.

Hermann

04 November 2002, 02:57

The Dane

Thanks Hermann.
If you don't want to post here then e-mail it to me please!

11 November 2002, 05:03

aHunter

Im gonna scan it in and send it tomorrow.

I was not at the computer for some time, I was huntin one or two days a week. Its time for the "Niederwildjagd", hunting hares and pheasants. Iï¿½m sure I bagged over 100 pieces of game, and season has just started.

My wife seems strange lately ( not that I see her that much ), in spite of me returning home after every hunt before 00:00 - ???

Sorry about the delay, Hermann

11 November 2002, 07:38

MacD37

Let me caution you here! Do not confuse this round 8X57R/360 NE with the much more powerful 8X57JR which also uses a .318 diameter bullet.

The 8X57R is simply a duplicate of the old 360 2 1/4" BPE which was first loaded with black powder, and later with somkeless! The factory loads only developed about 1800 fps,with a 196 gr bullet, and rifles made for this round should be used with caution when useing smokeless powder, and jacketed bullets.

The 8X57JR , however, will easily get 2450 fps with a jacketed 196 gr bullet, and developes 2600 fpe but developes quite a bit more chamber pressure, and would go over the top if the JR loads were used in the older round. The caution is "BE SURE OF YOUR DATA" before loading the old 8X57R/360! [Eek!]

[ 11-14-2002, 03:56: Message edited by: MacD37 ]

11 November 2002, 10:18

The Dane

Thanks MAC37. Here's the snag: Barrel twist is 1/26"!!! A 196 grain ,318" Norma Alaska boolit is 1,092" that's almost double the length of ,62" wich the Greenhill formula suggests! So why did Husquarna screw this rifle up so bad?

12 November 2002, 07:07

aHunter

No scan at home, no time at work:

Cases for 8x57R360 reformed from RWS 9.3x72R ( should be available from Sellier & Bellot, too ).

12.7 g JRN bullet, .318 dia.

R 903: 30.0 grs 540 m/s ( / 0.3048 should give ft/s )
32.9 grs 570 m/s
R 907: 32.5 grs 535 m/s
34.0 grs 570 m/s
R 904: 35.0 grs 530 m/s
37.5 grs 580 m/s

RWS cautions that the neck diameter of these reformed cases MUST be reduced. They definitely recommend against useing original cases ( Berdan primed ) because of age.

For bullets I would think of RWS, Norma and S & B, .318 of course.

Have fun! Hermann

13 November 2002, 08:12

<Kimmo E>

The twist must be ment for leadbullets.

Med vï¿½nlig hï¿½lsning Kimmo

14 November 2002, 09:17

bpesteve

Just to be picky, MacD37 said:

quote:
The 8X57R is simply a duplicate of the old 360 Nitro Express No2 which was first loaded with black powder, and later with somkeless! The factory loads only developed about 1800 fps,with a 196 gr bullet, and rifles made for this round should be used with caution when useing smokeless powder, and jacketed bullets.

Which isn't quite true. The 8x57R/360 is based on the early British .360 2-1/4" BPE case, which also spawned a zillion other cartridges including the 9,3x72R and even the .30-30 family. The .360 No.2 NE is a much larger case based on the .450 3-1/4" and was loaded only with smokeless.

There was an article in the "Handloader" magazine years ago that listed some loads for the 8x57R/360; I ought to scan that one and post it somewhere as this cartridge does come up fairly often.

14 November 2002, 12:54

MacD37

quote:
Originally posted by bpesteve:
Just to be picky, MacD37 said:

quote:
The 8X57R is simply a duplicate of the old 360 Nitro Express No2 which was first loaded with black powder, and later with somkeless! The factory loads only developed about 1800 fps,with a 196 gr bullet, and rifles made for this round should be used with caution when useing smokeless powder, and jacketed bullets.
Which isn't quite true. The 8x57R/360 is based on the early British .360 2-1/4" BPE case, which also spawned a zillion other cartridges including the 9,3x72R and even the .30-30 family. The .360 No.2 NE is a much larger case based on the .450 3-1/4" and was loaded only with smokeless.

There was an article in the "Handloader" magazine years ago that listed some loads for the 8x57R/360; I ought to scan that one and post it somewhere as this cartridge does come up fairly often.

Bprsteve, you are absolutely right, and I thought of that in the middle of the night, but didn't have time to edit my post. You know how it is when one passes the old timers test! I will edit it now! [Embarrassed]

15 November 2002, 20:11

The Dane

bpesteve, one scan please! I'll wait impatiently.

17 November 2002, 04:47

bpesteve

OK, I've scanned the article and placed it here for viewing. This is from Handloader Magazine issue 139, May-June 1989.

18 November 2002, 09:34

The Dane

Thanks for the great info. bpesteve you're the man of the day.

09 December 2002, 06:50

carcano91

Henrik:
there are many more (pressure-tested) data in the DEVA reloading handbook. Its 4th edition shows on pp. 294-295 five loads for the RWS SPRN and two loads for the Norma SPRN bullet. Propellants used: Vihtavuori, IMR, Rotweil, Norma.

Regards,
carcano91@hotmail.com

18 December 2002, 11:00

urdubob

I have a double rifle in this caliber. I have not been able to get good groups with pointed bullets. I have had to buy a mold and to my horror shoot cast lead bullets. The goups tighten up to 5-6 inches at 50 yards. Velocity is a bit low at 1700 FPS. 196 grain bullet 35 grains of Reloader 12...off the top of my head...if interested Email me I will look up.

But have killed wild boar with this gun last march.

urdubob

[ 12-18-2002, 02:04: Message edited by: urdubob ]