New MP Mould.

USSR · April 23, 2018, 07:31 AM

Received my new MP mould from Miha last week, so had to try it out. The mould was from a group buy on the cast boolits website, and casts a bullet that is a clone of the H&G #68 bullet - with one exception. I recently bought a beautiful cased Smith and Wesson Model 25-2 made in 1975 that appears to be unfired, and as is typical of both the .45 ACP and .45 Colts made by Smith and Wesson in that era, has the large throats. So, I ordered the mould to size the bullets to .455" instead of the typical .453" size. The mould is marked as .455 and with my alloy the bullets are dropping at .456". Ah, life is good.

Don

30Cal · April 23, 2018, 07:48 PM

I have that same mould in 457 for a S&W 455 hand ejector (and I still have to beagle or PC them to get them to do well in my cylinders/bore which mic at 4585).

Anxiously awaiting the 220gr HB manstopper. Any day now....

USSR · April 24, 2018, 06:02 AM

Quote:

Anxiously awaiting the 220gr HB manstopper. Any day now....

As am I, as am I.

Don

30Cal · June 13, 2018, 08:37 PM

Mine showed up this afternoon. I cast about 75 before the light ran out. Cool bullet. About as big as a thimble.

USSR · June 14, 2018, 07:05 AM

Mine sits waiting for me at the post office. Got there too late yesterday to pick it up. I am a little worried about how well the slightly rounded edge at the top of the mould will turn out when casting. Any problem with that?

Don

muzzleblast... · June 14, 2018, 10:41 AM

Nice molds and boolits. Out of curiosity, do you guys think there were be much upset at the hollow base using air-cooled wheel weights? Enough for oversized ~.456" cylinder throats?

USSR · June 14, 2018, 12:27 PM

muzzleblast,

I never use straight wheel weights, too hard for my intended velocity (750 - 800fps). Cut it 50/50 with pure and now we're talking. Chances are the bullets will come out of the mould at .456", so run them thru a .457" lube/sizer die and you will start out with .456" bullets.

Don

30Cal · June 14, 2018, 05:30 PM

I didn't really have enough time to really get everything working well. I had a buncha 3:1 WW:soft in the pot, pot drains fast with this mold, plus new mold, etc. The area between the two grooves is the only troublesome part. The tops of the bullets came out easy right out of the gate.

I need to figure out how to work this with my Lee bottom pour. The pins get in the way of the rest except with just the right geometry. I've never cast HP/HB bullets before; it's kinda nice. I give the handle nut two raps, and then nudge the pins on any that haven't dropped and that pretty much does it.

USSR · June 14, 2018, 05:46 PM

Was able to get to the post office today and pick mine up. Typical Miha quality, as in Excellent.

Don

April 23, 2018, 07:31 AM	#1
USSR Senior Member Join Date: November 14, 2017 Location: Finger Lakes Region of NY Posts: 1,442	New MP Mould. Received my new MP mould from Miha last week, so had to try it out. The mould was from a group buy on the cast boolits website, and casts a bullet that is a clone of the H&G #68 bullet - with one exception. I recently bought a beautiful cased Smith and Wesson Model 25-2 made in 1975 that appears to be unfired, and as is typical of both the .45 ACP and .45 Colts made by Smith and Wesson in that era, has the large throats. So, I ordered the mould to size the bullets to .455" instead of the typical .453" size. The mould is marked as .455 and with my alloy the bullets are dropping at .456". Ah, life is good. Don __________________ NRA Life Member NRA Certified Metallic Cartridge Reloading Instructor

June 14, 2018, 07:05 AM	#5
USSR Senior Member Join Date: November 14, 2017 Location: Finger Lakes Region of NY Posts: 1,442	Mine sits waiting for me at the post office. Got there too late yesterday to pick it up. I am a little worried about how well the slightly rounded edge at the top of the mould will turn out when casting. Any problem with that? Don __________________ NRA Life Member NRA Certified Metallic Cartridge Reloading Instructor

June 14, 2018, 12:27 PM	#7
USSR Senior Member Join Date: November 14, 2017 Location: Finger Lakes Region of NY Posts: 1,442	muzzleblast, I never use straight wheel weights, too hard for my intended velocity (750 - 800fps). Cut it 50/50 with pure and now we're talking. Chances are the bullets will come out of the mould at .456", so run them thru a .457" lube/sizer die and you will start out with .456" bullets. Don __________________ NRA Life Member NRA Certified Metallic Cartridge Reloading Instructor

April 23, 2018, 07:48 PM	#2
30Cal Senior Member Join Date: December 3, 2002 Posts: 1,264	I have that same mould in 457 for a S&W 455 hand ejector (and I still have to beagle or PC them to get them to do well in my cylinders/bore which mic at 4585). Anxiously awaiting the 220gr HB manstopper. Any day now....

June 13, 2018, 08:37 PM	#4
30Cal Senior Member Join Date: December 3, 2002 Posts: 1,264	Mine showed up this afternoon. I cast about 75 before the light ran out. Cool bullet. About as big as a thimble.

June 14, 2018, 10:41 AM	#6
muzzleblast... Senior Member Join Date: April 16, 2015 Location: Obwat, TN Posts: 285	Nice molds and boolits. Out of curiosity, do you guys think there were be much upset at the hollow base using air-cooled wheel weights? Enough for oversized ~.456" cylinder throats?

June 14, 2018, 05:30 PM	#8
30Cal Senior Member Join Date: December 3, 2002 Posts: 1,264	I didn't really have enough time to really get everything working well. I had a buncha 3:1 WW:soft in the pot, pot drains fast with this mold, plus new mold, etc. The area between the two grooves is the only troublesome part. The tops of the bullets came out easy right out of the gate. I need to figure out how to work this with my Lee bottom pour. The pins get in the way of the rest except with just the right geometry. I've never cast HP/HB bullets before; it's kinda nice. I give the handle nut two raps, and then nudge the pins on any that haven't dropped and that pretty much does it.