Just bought a pound of H-380. I need help with loading for 8mm Mauser.

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23 April 2014, 06:05

kennedy

Just bought a pound of H-380. I need help with loading for 8mm Mauser.

I couldnt get on Hodgdon reloading site. Does any body Have any loads for the old 8mm. I got on hand 150 grain and 200 grain bullets

23 April 2014, 06:39

RMiller

I got on the Hodgdon website but they don't list any loads for the 8mm Mauser and H380.

23 April 2014, 06:40

RMiller

Barnes shows data on their website for X bullets but it would be a start.

23 April 2014, 06:49

richj

My yugo likes 170gr speers and 51.5 of H-380. This is considered hot.

23 April 2014, 09:04

delloro

150 sierra 49.5 @ 2562, 54.0 @ 2778 fps max.

170 speer 45.0 @ 2387, 49.0 @ 2509 fps max.

H380 loads from hodgdon manual #27.

from steve's pages, 200-gr data: http://stevespages.com/323_9_200.html

H-380 From 42.1 grains to 52.0 grains

23 April 2014, 20:22

PaulS

I don't know why The Hodgdon website no longer lists H380 for any loads in the 8mm but my hodgdon book recommends these maximums:

125gr bullet, 55.0; 150gr bullet, 54.0; 170gr bullet, 49.0; 225gr bullet,46.0

You should reduce these by 10% to start and work up from that. As always don't exceed maximums.

I see that Steve's pages are still well over the maximum listed loads - 10% in this case.

23 April 2014, 20:37

kennedy

Thanks alot guys. Gonna load some up and see what happens.

24 April 2014, 04:00

bartsche

Speer shows a max. for their 200 grain bullet of 52grains w/ a magnum primer at 2469 fps.

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..

26 April 2014, 09:13

Heavy Metal 1

I use it for 200gr Nosler Partitions for elk hunting. Nosler load data

08 May 2014, 23:51

Atkinson

Data from Nick Harveys Practical Reloading Manual states that H380 isn;t the ideal powder in an 8x57, in fact its not a recommended powder...
Harvey shows:
150 gr. bullet....51 grs. of IMR-4064 for 2920
175 gr bullet....52 grs. of IMR-4320 for 2800

200 gr. bullet....51 grs. of IMR-4350 2350 FPS
200 gr. bullet....57 grs. of H4831 2350 FPS

Cut back 10% on the listed powder charges and work up and be sure you have a good mod. 98 Mauser..

I have used the H4831 load and it gives high velocity and very low pressure..its been my choice with 200 gr. bullets.

20 May 2014, 10:34

craigster

Usable, yes. Suitable, something you'll have to decide.

I have used data from:
http://stevespages.com/323_9.html

25 May 2014, 08:29

swarf

Hodgdon Data Manuel N0. 25 fifth printing 1989

150 grain bullet Start 49.5 max load 54 grains 2778fps

170 grain bullet Start 45.0 max load 49 grains 2509fps

225 grain bullet Start 42.5 max load 46 grains 2285fps

These loads are on pp. 264 and 265

I've got a can, and never tried it in my old cannon. It is a BYF98 I got in about 1963 or 64. It wears a Herters stock and a Weaver 1 - 4.5 power scope from that vintage. Good luck, and have fun. It has a black cover. It probably cab be located at a gun show in someone's old stuff. We old guy's have old stuff.

25 May 2014, 08:33

swarf

quote:
Originally posted by swarf:
Hodgdon Data Manuel N0. 25 fifth printing 1989

150 grain bullet Start 49.5 max load 54 grains 2778fps

170 grain bullet Start 45.0 max load 49 grains 2509fps

225 grain bullet Start 42.5 max load 46 grains 2285fps

These loads are on pp. 264 and 265

I've got a can, and never tried it in my old cannon. It is a BYF made 98 I got in about 1963 or 64. It wears a Herters stock and a Weaver 1 - 4.5 power scope from that vintage. Good luck, and have fun. The book has a black bound cover, and is about 1.5 inches thick.

It probably cab be located at a gun show in someone's old stuff. We old guy's have old stuff.

30 May 2014, 21:21

Atkinson

I have used it and chronographed it and I have never been able to get some of the velocity the books quote..I think some reloading books are just put together from other reloading books..

The best velocity and accuracy I have ever gotten in the 7x57 and 8x57 has been H414 hands down..My old 4831 worked well enough but not as good as H414..My 8x57 and 7x57 both are Brno mod 21s and both have the typical Brno long 30-06 magazine and long throated matching chamber so they can compete quite easily with a 8mm/06 or a 280 Rem..