MiHec 360640L load data

[rockydoc]

Have any of you worked up loads for the MiHec 360640L? I have not cast boolits with all of the HP pins yet. The Penta HP casts 131.1 grs(+ or - 1gr). The long HP pin casts 125.0 gr (+ or - 1gr.). I assume the flat noses will weigh 140+ grs. I have weighed the boolits that I have cast and separated them into lots that weigh within .2gr or less of each other. This has given me 5 or 6 little piles of boolits. How close do the weights need to be to prevent flyers?

I have the following powders: Bullseye; Red Dot; Unique; Accurate #5; W231; Herco; HS 7; plus a bunch of rifle powders.

Have you any suggested loads?

[bushog]

Look for Hornady jacketed bullet loads.

[StratsMan]

Rockydoc, you don't tell us what caliber you're loading for, or what you're gonna shoot this in...

I use this mold for my 38 and 357 revolver loads, primarily plinkin' velocities... Bullseye is my "go-to" for such loads, and I use 3.0 - 3.2 grains in 38 Special... Up to 6.5 grains in 357, but it's uncomfortable. I back down to 5.5 grains in 357 for plinkin'...

For load data, Richard Lee's book is the first place I go for cast loads...

[rockydoc]

StratsMan, I am loading for .38 Spl. Lee's book is the first place I went also, but I didn't have any of the powders he listed.

[wonderwolf]

I FINALLY got a day off and cast about 150 of these up with the large HP between yard work and shop cleaning. I plan on loading a +P load in .38 special with red dot starting around 4.0gr and working my way up most likely. For .357 Magnum loads I'll start at the low end with 2400 and work my way up. I got a plain base mold and I'm shooting these out of a paired up revolver/bolt action combination which I have not slugged yet, leading build up gets bad on the bolt action if I'm not careful.

[zubrato]

Does this mold cast well with stratight clip on wheelweights? Which pins show better performance for expansion or accuracy?
Looking to buy this mold sometime soon, thank you guys!

[wonderwolf]

I'm using straight wheel weights and they cast and drop pretty well, No word on expansion yet as I have not been able to get wet packs together to test however I have shot loads ranging from 700-2000 FPS using this particular bullet out of my bolt action .357 Magnum and 600-1450 FPS out of my 5" Gp100 bullets were cast with large HP pins. I'm curious how well it stays together in the wet pack with the upper loads.

[wonderwolf]

I sat down and looked over data and notes from last weekends range session, one fun load was 2.0Gr of red dot in .38 SHORT COLT out of my little carbine, was clocking just over 700fps and could almost shoot it without earplugs if you're out in the open.

[rockydoc]

Wonderwolf
What type bolt action rifle comes in 357 Magnum? What does it mean when someone posts only one word "Bump"?

[wonderwolf]

The very strong 77 action has been reintroduced in .357 http://www.ruger.com/products/rotaryMagazine77357/models.html

"bump" refers to the swap and sell section when somebody wants to put their ad back at the top of the thread so it gets attention albeit for a short time since a reply to any thread on the forum sends that topic back to the top of the list.

[wonderwolf]

Friend got a ground hog today at 50 yards with a .22 but it was still thrashing a little bit. I smacked it with this 125gr in a .38spl case on top of 4.2gr of red dot out of my rifle and well he stopped moving but the impact rolled him. BIG guy but not enough resistance to really open up the large HP, it did look like somebody surgically installed a softball between his shoulder blades though.

[hicard]

Oh, I am pretty sure that slug opened up at that velocity. Especially if it was a large hp at approx. 1230 fps.

[wonderwolf]

Wet pack test with 4.2gr of red dot load in .38 special large pin. velocity out of 5" is somewhere around 935fps I believe as 4.0gr of red dot gives me 900fps



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[rockydoc]

Wet pack test with 4.2gr of red dot load in .38 special large pin. velocity out of 5" is somewhere around 935fps I believe as 4.0gr of red dot gives me 900fps

142134142135

That should get the job done! What is your alloy?

[wonderwolf]

That should get the job done! What is your alloy?
Should be straight wheel weights, did a ground hog in yesterday with the 9mm cousin mihec does in this style of bullet, I skinned her out to autopsy and her brain didn't have a bone or tissue fragment larger than a tic tac, no exit wound.

[wonderwolf]

Smoked 2 ground hogs today out of my bolt action so yeah it did the job just fine with 4.2gr of red dot in .38 special. Nailed the first one (closest to the hole) 2nd one started to run and I'm still mad at missing the running shot (just barely under him) but I got him when he came back out thinking his buddy was still eating. Didn't recover any of the slugs as we were busy working on other things and didn't have time.

[wonderwolf]

Got out again with the large HP pin version of this bullet, 2000 FPS out of my .357 carbine into wet pack and the bullet held together really well. I'm impressed, again just used water dropped COWW

[rockydoc]

Wonderwolf:
The expanded boolits in #13 above you said were "straight wheel weights" at 935fps. Does that mean air cooled? Because you specified "water dropped COWW" in the 2000fps version in #17. Have you checked the BHN of these two? I ask this because I am shooting standard pressure .38 Spl. I may be able to get 935 fps but not much more, and a boolit that would expand and hold together at 2000fps I would expect to be a non-expanding "solid" at 935fps.
rocky

[wonderwolf]

Wonderwolf:
The expanded boolits in #13 above you said were "straight wheel weights" at 935fps. Does that mean air cooled? Because you specified "water dropped COWW" in the 2000fps version in #17. Have you checked the BHN of these two? I ask this because I am shooting standard pressure .38 Spl. I may be able to get 935 fps but not much more, and a boolit that would expand and hold together at 2000fps I would expect to be a non-expanding "solid" at 935fps.
rocky

My mix is straight wheel weights (COWW) and my method is all cast boolits are dropped in water. Bullet in middle is from .38 special load, flanked by bullets pushed to 2000FPS out of my bolt action .357. They retained full weight when weighed as far as I can tell, there is pulp packed under the mushroom cap and the weight is well above 130gr. You'll get some expansion at 900, I loaded up a few of these in .38 short colt cases I made just for grins, I'll have to wet pack test those next time as well I guess, i think they are going 700FPS? out of my carbine at least. I have not tested hardness, I've never really concerned myself with hardness or lead blends.

144498144499

[paul h]

Has anybody tried these out of a 9mm or 380? I have one of the molds but due to a recent move haven't had a chance to cast it yet. I'm planning on getting a 380 and or 9mm and am debating whether I should get one of the 125 gr 9mm MP or molds or if this one will work as well?

[wonderwolf]

I have the sister mold to this that mihec offers for 9mm same basic design but without the crimp groove and slightly shorter I believe. I have not measured them but I would think the .357 offering may be a little long for .380. I'll try and remember to measure them later today when I'm out in the shop and get back with you here.

[paul h]

I managed to finally get in a casting session with the mold. Loaded up 50 ea over 3.5 and 4.0 gr of 700-X in 38 sp cases. Both loads shot well out of both my 357 blackhawk and taurus 85. For a snubbie it's a very controllable load. 4.0 gr of 700X is likely in the +p territory.