Mountain Moulds...

[Bad Karma]

Has anyone designed a bullet and purchased a mould from this company? I am contemplating a mould for my 9.3x62mm in a bore ride design weighing about 300-320gr range. I have about 1000 Speer 270gr boolits and about 300 Barns X in 286gr. I like shooting this rifle but, boolits are getting expensive.

[Blammer]

Not personally but I have a friend who has and I have used his mould. THEY are very good! VEry very GOOD!

[Glen]

I've done half a dozen moulds with Dan, inluding one for my 9.3x57, a 285 grain GC-FP. His work is excellent. In every case he has given me exactly what I ordered.

For some of the details, see:

http://www.lasc.us/Fryxellmountainmolds.htm

[scb]

I've had MM make two for me. My avatar is one of them. One was a single cavity the other was a double. I received exactly what I had "designed". The only complaint, well not really a complaint but thing I found curious was the first one I ordered was the single cavity and when I received it there was a note saying that it would have been "better" if it had been a double cavity - a little late at that point. He gave a reason at the time that escapes me now. It works fine for me. I would buy from him again - no problem. I just (2 weeks ago) ordered a 9.3 mould from CBE. You might want to check them out. Was a little leery about ordering overseas but the ordering was painless, now for the delivery. Steve

[475/480]

I have many moulds from Dan at MM and you will get a very good mould made to your spec's.


Sean

[C A Plater]

I had the three cavity made by Mountain Moulds and am very pleased. As you can see they come out very smooth and the build is exactly to specification. This one is a 165 grain .30-30 interpretation of the Ranch Dog design. I wanted large lube grooves instead of tumble style for use with Lar's hard red lube. This wont be my last buy from them.

http://tcbunch.com/kiosk/casting002.jpg

[quasi]

I have had 2 customs from MM. One is aluminum and is perfect. The other is on cast iron blocks and has a tool mark on the Meplat. He did warn of problems on cast iron blocks in this area. I will buy again from him, great service.

[LeadThrower]

I have one brass double cavity from MM and love it! It's exactly to spec, throws fantastic boolits, and turnaround was faster than expected. When I need another, MM is the first place I'll turn to.

[Bad Karma]

I've done half a dozen moulds with Dan, inluding one for my 9.3x57, a 285 grain GC-FP. His work is excellent. In every case he has given me exactly what I ordered.

For some of the details, see:

http://www.lasc.us/Fryxellmountainmolds.htm

OK, gas check question then, do you run a .375" gas check through your .366" die? If so is there a problem with uneven edges?

[Blammer]

These are bullets I cast from the MM I borrowed.

http://i54.photobucket.com/albums/g81/blammer8mm/Cast%20boolits/207JTL.jpg

[KCSO]

5 moulds so fall all to spec and all perfect. Don't hesitate to hav Dan make you one.

[Glen]

BK -- Yes, I use .375 GCs with that mould. No problem with uneven edges.

[jeff223]

I had the three cavity made by Mountain Moulds and am very pleased. As you can see they come out very smooth and the build is exactly to specification. This one is a 165 grain .30-30 interpretation of the Ranch Dog design. I wanted large lube grooves instead of tumble style for use with Lar's hard red lube. This wont be my last buy from them.

http://tcbunch.com/kiosk/casting002.jpg

i thought that boolit looked something like a Ranch Dog design.i bet its a shooter too.you just got to love those Ranch Dog boolits

[Bad Karma]

i thought that boolit looked something like a Ranch Dog design.i bet its a shooter too.you just got to love those Ranch Dog boolits

Nice boolits! I have to get the micrometer out and do some number crunching. I'm thinking of a 9.3mm 300-310gr bore ride design with eith Lynotype or wheelweights. I'm looking for a all around big game stomper. I think I'll wait on the .404 Jeffreys and design onw for my 416 Remington magnum at around 450grs. I want to be able to sell some too.

[crabo]

Aluminum or brass? What is the best way to go?

Thanks,

Crabo

[Blammer]

brass is good and the grade of alum matters as there are several types.

[ktw]

I've played around a bit with the design software. It appears to me that you are restricted to a .180" or larger meplat. Does anyone know if a round nose or spire point bullet is possible?

-ktw

[GLynn41]

I have one LBT and one MM but are very good-- both cast very well -- I like the MM becasue I designed it -- as to the spire point ask Dan -- he will not design it but he will make suggestions-- eerrr sometimes:-D

[Old Ironsights]

I've played around a bit with the design software. It appears to me that you are restricted to a .180" or larger meplat. Does anyone know if a round nose or spire point bullet is possible?

-ktw

Dan's FAQs say no...

I'm about ready to order another mold, but I'm not sure of a couple of things:

Using the 9.3mm 200gr default, it throws a .368 boolet with a .055 Crimp Groove with a .1 driving band and 3 bands and 2 lube grooves.

http://i5.photobucket.com/albums/y180/MrMisanthrope/97d8f43d.jpg

Now, I've got to reslug my bore to decide on the OD & optimal twist, but I'm wondering if it mignt not work better, especially using LLA, if I went with:

Driving Band .05
Base .05
Crimp Groove .045
4 .0466 body bands & 3 .0466 grooves
OAL .772
70% Meplat

http://i5.photobucket.com/albums/y180/MrMisanthrope/8f6aa333.jpg

Or do I really need the fatter driving & base bands?

[Blammer]

base, that's pretty thin, I'd opt for a thicker base.

your driving bands are fine and lube groove too, IMO

crimp groove is a tad big I think, you can go 1/2 of that, add the rest to the base and still have same OAL

[Old Ironsights]

That's the smallest crimp groove I can order. But then, I'm getting a FactoryCrimp Die, so do I really need a crimp groove?

5 band, 4 groove, no crimp groove, .1 base .05 drive OAL .765, nose .375

http://i5.photobucket.com/albums/y180/MrMisanthrope/5ec3375e.jpg

5 band, 4 groove, no crimp groove, .1 base .1 drive. OAL .754, nose .375

http://i5.photobucket.com/albums/y180/MrMisanthrope/b69afc11.jpg

[Blammer]

I'd go with the top one. It will give you more options to seat it longer into the throat if needed.

forget the crimp groove, on a lead bullet you can crimp anywhere and it will be fine plus if you have enough neck tension, crimping is going to be unnecessary in my opinion.

[Old Ironsights]

OK...

Without slugging first...

the design program defaults a 9.3mm to .368", but the Dims I have for the 9.3 have the case mouth ID at .365, lands at .346 and Grooves at .364. Should I run .366 vs .368?

BTW: This is out of a nitro-proofed 100yr-old drilling and the cartridge is to be used for medium to small game at moderate to low pressures (66gr water capacity, originally a BP load)

[Blammer]

I'd get it at .368.

Sizing down one or two thousandths is reasonable and won't hurt anything.

plus the narrow driving bands you have on it will be easy to size down quite a bit.

Just make sure your lube grooves are deep enough.

How many grooves and how wide are they in your rifle?

[Old Ironsights]

IIRC it's 3, but I'll have to look... and try to figure out twist.

THis one looks pretty:

http://i5.photobucket.com/albums/y180/MrMisanthrope/2375bcd9.jpg

.367 5 band, 4 groove, no crimp groove, .1 base .07 drive band. OAL .775, nose .375 70% Meplat.

I can only imagine what a 1/8" HP from my soon-to-arrive Forster Universal will do to this... :twisted:

[Old Ironsights]

I'd get it at .368.

Sizing down one or two thousandths is reasonable and won't hurt anything.

plus the narrow driving bands you have on it will be easy to size down quite a bit.

Just make sure your lube grooves are deep enough. I use LLA so I'm trying to fake tumble-lube grooves with Dan's program.


How many grooves and how wide are they in your rifle?

From my Chamber Cast:

6 .055 Lands. Grooves .130, Leade .55

By both Calcs and best guess obsrvation of a pull-through test I'm seeing a 1/10 or 1/11 twist

From the Cerrosafe the land moves .10 in 1". Bullet dia is .365 so circumference is 1.14668.

1.14668/.11=11.46 so anyway, margin of error in measurement puts me at 1/10-1/12...

The bullet above says it stabilizes best at 1/20, so I'm a little flummoxed.