h4198 and h414 I have at my disposal

[lumpocoal]

looking for any information in relation to these 2 powders... What I am trying to load and have no information for is the Lee 8mm MAX mold for 8x57 mauser (.323).. I have lubed, sized and gas checked the 25 or so bullets I have cast.. I have a few pounds of these types of powder and wanted to know if anyone could at least give me a starting point on loads (if I am able to even use these powders..) I have a Lee 175grn mold on its way also, any info, Thanks

[wmitty]

I have that mould and it drops about 245 grains IIRC. I don't have an 8 x 57 to try it in, but the H414 should be usable and not run pressures up too quickly. If you have any data for a heavy jacketed bullet, you could use the starting load for H414 and not get into trouble.

[Pilgrim]

The H4198 should be good for "normal" cast boolit velocities. The H414 (aka W760) should be usable for "high velocity" cast loads. I am away from my manuals, but others will undoubtedly chime in here. If you don't have at least one of the Lyman cast boolit manuals, go get one. #3 is probably the best but may be hard to find since its now been "replaced" by #4.

[wmitty]

Hornady shows 45 grains of H414 producing 37 kcup behind a 200 gr jacketed bullet. Start at 36 - 38 grains under the MAX boolit and increase in 1 grain increments. I wonder how the quick twist of the Mauser will affect the accuracy/velocity limits of the long slug. If you go this route, please let us hear of your results. I am trying to go from the opposite direction by using the MAX in a .32 Special with 16" twist. I will see how short the nose has to be in order to stabilize with the slow twist.

[uscra112]

Just ran H4198 and a 245 grain boolit through Quickload. I'd be inclined to start at 28 to 30 grains. H4198 is really a bit too fast for such a heavy boolit.

36-40 grains of H414 (W760) is more like it, but 38 grains is only going to generate 20,000 psi which is low for that powder. You may get erratic velocities, even hangfires, if my experience with W760 in my 03-A3 is any guide. Your better load with H414 will likely be close to 45 grains using a boolit cast pretty hard. (16-17 BHN or above).

[lumpocoal]

Thanks for all the info. I am going to cast a few more this weekend then load some and try em, and I will let yins know

[lumpocoal]

Just ran H4198 and a 245 grain boolit through Quickload. I'd be inclined to start at 28 to 30 grains. H4198 is really a bit too fast for such a heavy boolit.

36-40 grains of H414 (W760) is more like it, but 38 grains is only going to generate 20,000 psi which is low for that powder. You may get erratic velocities, even hangfires, if my experience with W760 in my 03-A3 is any guide. Your better load with H414 will likely be close to 45 grains using a boolit cast pretty hard. (16-17 BHN or above).

My main concern is leading of thhe barrel, heard horror stories lol

[lumpocoal]

Also I wouulld like to add... I get range lead smelt it out of the jackets from pistol targets, once I have approx half of an egg skillet full of lead I let it cool and remove the ingot (cast 6" skillet) then smelt wheel wieghts to half full skillet, once i have all the draws off I re add the range lead bout a 50/50 of wheel wieght and range lead..any thoughts? I do not have a hardness tester but figured it would be consistant with hardness, like I said any thoughts are appric..thanks

[Cosmiceyes]

I found with a 150 gr j-boolit a load for H4198 it starts at 38.0 grains 2688 fps. Max is 41.0 grains 2848 fps. This is out of a 26 inch test bbl.
225 gr j-boolit a load for H414 it starts at 46.0 grains 2208 fps. Max is 50.0 grains 2342 fps. Hodgdon Data Manual #24 8x57mm Mauser.

[lumpocoal]

77420well the results are in have to figure out how to post a pic, I loaded up the 175grn lee cast bullets lubed sized GC'd and lubed again, loaded over CCI 200 LR Primer 24.5grn of H4198 with a pencil eraser sized piece of cotton. I trimmed down 30-06 cases sized to 8mm bc all of my 8mm brass is loaded with 170grn hornady RN J-words... No pressure signs everything went well for giving this a try, light recoil, just a litle milder than off the shelf remingtons

[lumpocoal]

50 yards free handing it

[lumpocoal]

no leading and the gas checks Im using were purchased on ebay and they are aluminum

[aspangler]

Try some Hornady or Lyman GC's and you MIGHT see a difference. My 8MM Mauser just don't like the alum. GC. I found some Hornady somewhere online (don't remember where ) and tried them and my groups shrank from what you showed to 1" for% shots at 100 yds using 24.8 gr 2400 and no filler. So far I have not had any luck with the aluminum chex. Just my experience.

[lumpocoal]

I picked up 250 of em cheap so just trying this out for now, might have got myself bit by the cast bug lol. I would like to know how these bullets would perform on taking down a PA whitetail....

[lumpocoal]

The pipe im throwing these pills down is a M48

[Duckiller]

#9 Speer,because it is what is at hand. 170 gr semi-spitzer jacketed, 23-27 gr H4198. As a guide.

[lumpocoal]

so ya dont think i needed the cotton to keep powder near primer, thoughts?

[lumpocoal]

might step the powder up to 25.5 next time around

[mroliver77]

I see your sizing to .323. Most all my 8mm mausers wanted boolits much larger. What do they measure as dropped?
J

[DLCTEX]

I personally would not use cotton in a case that is not straight walled. I would use a small amount of Dacron fiber and be sure not to press it down on the powder, but leave it "lofted" to fill all the empty space equally to prevent "ringing" the chamber. This is a matter that needs approaching carefully and with lots of study.

[lumpocoal]

I see your sizing to .323. Most all my 8mm mausers wanted boolits much larger. What do they measure as dropped?
J .324-.325 just size them for uniformity

[lumpocoal]

I personally would not use cotton in a case that is not straight walled. I would use a small amount of Dacron fiber and be sure not to press it down on the powder, but leave it "lofted" to fill all the empty space equally to prevent "ringing" the chamber. This is a matter that needs approaching carefully and with lots of study. I wasnt sure on this just figured to keep the powder near ignition sorce, it was "lofted" not packed, I didnt have any Dacron on hand, but I had cotton balls I will just omit the filler on next go round, thank you for the advice

[303Guy]

My only concern with cotton is its ability to ignite and start grass or bush fires. I don't think cotton would have any problem in a bottle neck case but if unsure, don't use it. Keeping it lofted is all that counts really.

[jonp]

At the bottom of this page is link to CASTPICS that shows data for 4198

[AABEN]

looking for any information in relation to these 2 powders... What I am trying to load and have no information for is the Lee 8mm MAX mold for 8x57 mauser (.323).. I have lubed, sized and gas checked the 25 or so bullets I have cast.. I have a few pounds of these types of powder and wanted to know if anyone could at least give me a starting point on loads (if I am able to even use these powders..) I have a Lee 175grn mold on its way also, any info, Thanks

Go get yourself a reloading book that will have this info.