8mm mauser

ginger49023

Looking at my Speer loading manual for reference:
I want to load 200g fmj.
I have loaded mid level W-760 and AA 2700
The Speer manual allows for a beginning load of 49g of IMR 4350 but that load appears to be a compressed load let alone anything higher in grains.
Safe to shoot as the others?
Just a bit leery.
Shooting a Yugo M48 that is in excellent shape.

thanks

Ambrose

I've used 49 gr. of IMR4350 with the 220 gr. Remington PSP bullet (that bullet was made for the 8mm Remington Magnum) in my Yugo. My notes say "plenty hot!", so I do not reccommend it, but apparently I was able to get that much powder and that heavy bullet into the case. I've had good luck with IMR4320 and the 185 gr Remington PSP bullet (another 8mm Rem. Mag. bullet). Good luck with yours.

jonk

First- much, but not all data for the 8mm is underloaded out of deference that someone could use it in a 1888 Commission rifle. Second, a lack of data in general exists. Third the 98 is built like a tank and if in good shape you don't need to dance around and light load, you can go full bore without issue.

Some loads I like- 46 gr of 4064 with a Remington 185 gr; 50 gr of ACCUR 4350 with the same; 50 gr of 4064 with a Hornady 150 gr; 38 gr of 4064 with a Hornady 220.

49 gr of 4350 with a 200 gr bullet doesn't sound out of the ordinary to me. It's a pretty slow powder and a heavy but not overly heavy bullet. With that powder and bullet I'd look for something in the 2600 fps range.

ginger49023

thanks
The IMR 4350 comes right up to the base of the neck at 50g.
I have a Yugo m48 with a 2.7 power scout scope. Man is it accurate.

sandwarrior

I've always used imr4064 for that round. However, I've worked up to 52 gr. of that behind a 200 gr. pill and loaded back down to 50 gr.

I'm out of IMR4064 at the moment so I'm working up loads in Hodgdon 100V. I tried it in some other cartridges but wasn't happy with it. So, I'm using the rest of it in this caliber. I'm up to 48 gr. with no pressure signs (behind a 200 gr. Speer pill)

nononsense

sandwarrior,

Even with a mildly compressed load and that bullet you will never reach any kind of serious pressure using the 100V.

On the other hand, I can get good pressure and velocity when I use the same case with a smaller diameter neck, 6mm Remington with a 105 gr. Match bullet.

The powder has a longer, mild pressure/heat curve conducive to larger case capacities and smaller caliber, heavier bullets. I have a load for the 6.5 x 284 which is crushingly accurate between 100 and 1,000 yards. But it doesn't have the velocity that the other 'competition' powders do. The best part though is the increase in barrel life for this cartridge.

Best.

sandwarrior

quote:Originally posted by nononsense
sandwarrior,

Even with a mildly compressed load and that bullet you will never reach any kind of serious pressure using the 100V.

On the other hand, I can get good pressure and velocity when I use the same case with a smaller diameter neck, 6mm Remington with a 105 gr. Match bullet.

The powder has a longer, mild pressure/heat curve conducive to larger case capacities and smaller caliber, heavier bullets. I have a load for the 6.5 x 284 which is crushingly accurate between 100 and 1,000 yards. But it doesn't have the velocity that the other 'competition' powders do. The best part though is the increase in barrel life for this cartridge.

Best.




After my testing today, I think you're right.

However, as far as the 100V I've felt it had a real sharp pressure curve. Right at top loads w/heavy bullets. That was in .243, 6mm Rem, .257, 25 WSSM, 25-06, 7x57 and .280AI. I wonder if I didn't get the oddball lot? I wanted to use it up, but now I'm thinking I want to look for accuracy, so I'll work with some other powders I've got a bunch of.

Thanks for the post!

nononsense

"I've felt it had a real sharp pressure curve. Right at top loads w/heavy bullets."

I don't doubt that at all.

This powder does not produce the highest velocity levels known to be attainable from other powders. In fact it runs about 100 - 125 FPS slower than the other powders show. So when you push the 100V to get the higher velocity, the shoulder of the curve sharpens right quick!

I like the granule design and the cooler burning characteristic so I'm using it when the highest velocities aren't needed. This is true of not only the 6.5 x 284 but the .22-243 AI and a handful of others.

Best.

Mobuck

I don't load much 8x57 but I'll add this little tidbit. Use care if mixing domestic and European branded cases. I loaded some HotShot headstamped cases with a listed starting load of IMR 4064 and found it to be close to max. Had I started in the mid to upper range of the data, I feel certain it would have created a high pressure condition.
I determined this from both visual primer condition and chronograph readings.

sandwarrior

quote:Originally posted by nononsense


"I've felt it had a real sharp pressure curve. Right at top loads w/heavy bullets."

I don't doubt that at all.

This powder does not produce the highest velocity levels known to be attainable from other powders. In fact it runs about 100 - 125 FPS slower than the other powders show. So when you push the 100V to get the higher velocity, the shoulder of the curve sharpens right quick!

I like the granule design and the cooler burning characteristic so I'm using it when the highest velocities aren't needed. This is true of not only the 6.5 x 284 but the .22-243 AI and a handful of others.

Best.




So, I took your advice and used what I've got left of my H4895. It seems to have a pretty straight pressure line. I ended up going with 48.5 gr. which is 3 gr. over Hodgdon max. Again, though I'm not using a pre'98 action. I'm using a Rem 700 Classic. By the drop method* I'm getting around 2650. Primers had a slight cratering, but not at all flat.

*-Zeroed @ 300 estimated velocity based on height @ 100.

ginger49023

thanks again people

Alan Rushing

quote:Originally posted by nononsense
sandwarrior,

Even with a mildly compressed load and that bullet you will never reach any kind of serious pressure using the 100V.

On the other hand, I can get good pressure and velocity when I use the same case with a smaller diameter neck, 6mm Remington with a 105 gr. Match bullet.

The powder has a longer, mild pressure/heat curve conducive to larger case capacities and smaller caliber, heavier bullets. I have a load for the 6.5 x 284 which is crushingly accurate between 100 and 1,000 yards. But it doesn't have the velocity that the other 'competition' powders do. The best part though is the increase in barrel life for this cartridge.

Best.
Nononesense, you sure know how to put a lot of information in a few simple sentences!

Been mulling over all that is being conveyed there. Find it about like taking in a very good and complete steak, vegies, potatos, and lobster tail.

That makes all the sense ... ( so I'd not have thought that one through all the way on my own!).

Thank you sir. [^]

sandwarrior

quote:Originally posted by Alan Rushing

quote:Originally posted by nononsense
sandwarrior,

Even with a mildly compressed load and that bullet you will never reach any kind of serious pressure using the 100V.

On the other hand, I can get good pressure and velocity when I use the same case with a smaller diameter neck, 6mm Remington with a 105 gr. Match bullet.

The powder has a longer, mild pressure/heat curve conducive to larger case capacities and smaller caliber, heavier bullets. I have a load for the 6.5 x 284 which is crushingly accurate between 100 and 1,000 yards. But it doesn't have the velocity that the other 'competition' powders do. The best part though is the increase in barrel life for this cartridge.

Best.
Nononesense, you sure know how to put a lot of information in a few simple sentences!

Been mulling over all that is being conveyed there. Tind it about like eating a very good and complete steak and potatoe, with veries and lobster tail meal.

Makes a lot of sense ... so I'd not have thought that one through all the way on my own!

Thank you sir. [^]



AAhhh...I see what you're saying now. I tried 'pushing' this powder{edit: 100V} in my 6mm-.284 and it seemed like all I got for it was blown primers. Maybe I should back off and just work the accuracy angle only. I had the same issues with the .257AI. Since I wasn't hitting the barrel that hard with a lot of shooting I never thought about barrel life much.

What kind of accuracy are you getting with your 6.5-.284 if I may ask?

nononsense

sandwarrior,

Yep, that's what I was getting at. This powder does not generate the velocities that other standard powders do. It burns cooler and performs about 100-125 FPS slower than comparable powders with the same bullet/case combination. But I get good or even better accuracy with certain combinations.

Prone with a rest shooting the 130 grain bullets, I'm inside 10" at 1,000 yards on average. Wind reading and switchy conditions can crush me on occasions. Short ranges though, I can get right around 2"(+/-) at 600 yards.

I've been working with some of the 6mm variants for a while now and I may field a couple of them next year in bolt rifles plus a gas gun as well. I just got a new reamer ground so I can start cutting chambers for testing here shortly. I might be ready by Jan./Feb. with loads but I will have to take some time to get somewhere reasonably warm for the testing. That will have to wait until the hunting seasons are over so I don't interfere with any of the late season hunts.

The competition season starts in March so that doesn't leave a lot of time...

Best.

Cyclonus

Does anyone know the load date for a 125 grain bullet using IMR 4895 its supposed to get just over 3000 fps however I have no idea what the charge is.

nononsense

From the Hodgdon website:

125 GR. HDY SP IMR IMR 4895 .323" 2.880" 47.0 2717 37,000 CUP 52.0 2945 43,700 CUP

Best.