Hi
yesterday i bought an old husqvarna m 640 in 8 mm in pristine condition. Today i need good loading data for the gun.i like hevey bullets and there are some good bullets on the market like woodleigh 220 and 250 gr, sierra game king 220 , swift 220 gr and so on. if you have some loading data please share it with me.
regards
yes

What will you be hunting? And where?
I only hunt deer and hogs in the South where all shots are less than 150 yards and my 8X57 is more than adequate. I use Barnes originals in 200 gr with 48.5 grains IMR 4064, CCI 200 primers and Rem brass which gives around 2500-2600 F/S. Bang Flop with my VZ 24 with my stock and looking into an old 2.5 Weaver.

Yes; The Barnes Reloading Manual #1 has data for 220 and 250 gr bullets.

yes, you should be able to do a search in the reloading forum. I am sure there is a few that do reload up past 200 grains in the 8mm Mauser.

I reload with the 200grn. Partiton and 50.5 of RL15-avg. 2614fps in a VZ24 mil. config.

I also like 200 NP's, i shot through this moose side to side, he then turned around faceing the opposite way so i shot him in the ribs again, and again the 200 NP went on through. Both bullets expanded well, and did good internal damage... The range was close to 150 yards...



In the close to 25 years i've been harvesting big game with this 8x57jrs, i've only recovered two NP's, and both hit extremely heavy bone and dropped the animials in there tracks...

DM

nice looking piece of country there DM! How I have overlooked the 8mm Mauser all these yrs is beyond me. Another season coming up!

Hi
thanks for replies
DM what about grizzly or brown bear ? do you beleive it would do with 200 NP or should i go with 220 w2oodleigh or 220 swift?
regards
yes

quote:

Hi
thanks for replies
DM what about grizzly or brown bear ? do you beleive it would do with 200 NP or should i go with 220 w2oodleigh or 220 swift?
regards
yes

I hunted all over Alaska for many years and although i've harvested several brown bears, i consider the 8x57 a bit light for that task. I'm NOT saying it won't kill a bear, i just feel something with a bit more power is in order...

I don't care to shoot big bears in the ribs and wait for them to die, so for me i prefer a bit more cartridge.

DM

In my M-700 Rem 2004 Classic, I built a load of 46.5grs H-414 with the Sierra 220 GameKing. I Chrony'd the load at average MV of 2275 fps and put 5 shots into a fraction over 1".

if 30 06 is ok for grizzly rhan 8x57jrs is ok too, they are almoust same ,last year i visited older german hunter,he has 2 grizzly trophy in the troom, both taken with 8x57jrs,its not about power,accuracy plus proper bullet and job is done

I think that using over 200gr bullets is where the 8x57 starts to loose ground. Just not enough velocity to shoot distance w/ accuracy and authority. I ran some numbers through my ballistics calculator. The 180gr Barnes TSX retains more velocity and has more energy than a 220 gr bullet at any range over 100 yards. The 220's are better suited for 8mmRem Mag IMO. I use pretty hot loads w/ IMR4320 w/ 175gr Sierra or 180gr Barnes and hover just under 2700fps. Barnes just came out w/ a 160gr TTSX that should hit over 2800fps w/ excellent BC, .405. I don't think that I would shoot a big bear w/ 8x57, but that is me.

If you use the 220grs Woodleigh and take an overall length of 78mm and 55grs RE 19, you can get little over 2400fps from the 8mm Mauser.
To reduce pressure it is important not to go under 78mm!

250gr. woodleigh RN, 52gr H4350, Rem brass, Fed 210 primers, 2350fps fired from 24/47 yugo. No pressure signs and 1.25" groups at 100yds or better. Seat the bullet long, COAL 3.12.
I use this load in Ak.

quote:

Originally posted by Yentna River:
250gr. woodleigh RN, 52gr H4350, Rem brass, Fed 210 primers, 2350fps fired from 24/47 yugo. No pressure signs and 1.25" groups at 100yds or better. Seat the bullet long, COAL 3.12.
I use this load in Ak.

52gr? My hottest 4320 for 180gr are 49.5. This is dangerous! 3.06 is the longest I've found that will chamber from the mag. 3.12 won't even fit the mag well. So how do you get around the controlled feed? Also since 4350 takes up more volume, please explain???
The 180's are spitzers, RN have less OAL.

BTW, Here are my 24/47's.

Jpat,

Please reread my post. I am not using 4320.
Before I developed this load I emailed woodleigh for data. The reply I recieved stated 50gr of H4350 for 2250fps would be a medium load and that it was safe to go higher if I desired. I started load development at 46gr. Groups began to tighten at 48gr, at 50gr my vel. was 2250fps and I continued to 52gr in 1/2 gr increases.
I have seen no pressure signs and feel safe using this load. As far as your rifles mag limits I haven't a clue but I can say that I have never had a problem. I seat the bullet to the base of the neck and they function flawlessly in my rifles. COAL-3.12"

After checking my notes I had to seat slightly deeper than the base of the neck, nearer to the base of the shoulder which cost me some case capacity. Just measured some ammo and COAL is 3.12.

Steve, I just can't see a 250gr using more powder than a 180gr. I use both 4320 and 4064. W/ the case capacity and 52gr of 4350, you are past any load data I have. 3.12" is the length of the mag well itself. So how can the bullet feed? The RN has to hit the Lands at that length.

Jpat,

4350 is a slower burning powder than 4320 or 4064.

The data that I used to develop my load I received from woodleigh.

3.12"OAL fits and feeds wonderfully in my rifles. It has to as I am in an area of Ak. with an extremely high bear density.

In my experience the 8x57 military barrels have very long throats having no problem accepting bullets seated long.

I suggest you E-mail woodleigh with your concerns. They have been helpful to me on a number of occasions.

OK Steve, I will take you on your word here. But a cartridge at Mag length and RN Bullets are a bad combo. Most military chambers have "extra" room.
Even still, it would be like throwinging a brick against a wall trying to chamber a round.