Mp clone of HG 275

[asmith80]

I'm looking for a good SWC that would work well in some of my 9mms with a really tight throat. Anybody have this mold and have any info on it?

[Papercidal]

I have one and it shoots great out of one of my CZ Shadow 2s but will not chamber in my second one.

[asmith80]

Do you know why it won't chamber in your other pistol? With the skinny nose I'd think it'd chamber in just about anything

[hermans]

My mold is a 6 cavity brass mold and the boolits it produces is just so beautiful!
My experience with this specific SWC boolit is that the bearing surface is rather long, I suppose to get you to the weight of 130gr, so in order to not seat it too deep in the case, which is tapered in 9mm, I had to make the COAL of my round about 28.3mm, which is about 1.114" if my math is correct.
This make the shoulder of the SWC boolit rather pronounced, so if your chamber is somewhat "short" the round will not chamber properly.
But a little reaming of the chamber sorted that for me, it shoots perfectly, and is very accurate, but the best feature of all for me is the perfect round hole it makes in paper targets.
I can see them perfectly out to 30 meters even with my old eyes!

So to answer you on that this boolit need to work in some of your guns with tight throats, I do not think this is the best design for you, I would much rather look at MP's 135gr flat pointed boolit, this one will chamber in almost any pistol and shoots very well also.

[asmith80]

Thanks for the reply. I have the flat point boolit you're speaking of, and it does work very well in most of my 9mms, except for my Canik tp9SFX. For some reason the throat on that pistol is tighter than even my CZs, which are notorious for tight throats. I'm going to send that barrel out to DougGuy for him to ream out, but I'd like a boolit that I can use even if I'm not shooting one of my own pistols that have had special work done

[Burnt Fingers]

Thanks for the reply. I have the flat point boolit you're speaking of, and it does work very well in most of my 9mms, except for my Canik tp9SFX. For some reason the throat on that pistol is tighter than even my CZs, which are notorious for tight throats. I'm going to send that barrel out to DougGuy for him to ream out, but I'd like a boolit that I can use even if I'm not shooting one of my own pistols that have had special work done

I had severe leading problems with my SFX. The rifling was cut at a 90 degree angle to the chamber with no leade. No matter what I did that thing leaded like crazy.

The I had DougGuy throat it. WORLD of difference. No more loading short, no more leading.

[asmith80]

Yeah, that gun has been a real pill for me to figure out. It had me questioning my whole loading process until I realized it was the gun and not me.

As an alternative to the MP design, I see that Accurate has a 115gr. SWC that would work for 9mm. It looks like it's a little shorter than the one he lists for 125gr. (if I'm reading the specs right) so there wouldn't be as much issue with loading deep in the tapered 9mm case if I needed to. Bummer that Accurate doesn't do 8 gang molds like MP does ;)

[Burnt Fingers]

Once I had DougGuy do the barrel I found I could use any boolit I wanted.

[Papercidal]

Do you know why it won't chamber in your other pistol? With the skinny nose I'd think it'd chamber in just about anything


I load them a bit on the long side but they will still pass my tightest chamber gauge but my second Shadow 2 is very tight at the throat it’s more accurate than my match gun but is a bit too tight even for the factory federal action pistol load.

[asmith80]

Went ahead and got the MP mold. If the boolit ends up causing me too many headaches trying to get it to work in 9mm I can always use it as a light 38 spl boolit, so I figured it was a win-win. Never had an 8 cavity mold before, should drain my pot real fast :P

[Papercidal]

Went ahead and got the MP mold. If the boolit ends up causing me too many headaches trying to get it to work in 9mm I can always use it as a light 38 spl boolit, so I figured it was a win-win. Never had an 8 cavity mold before, should drain my pot real fast :P

They really drop the bullets nice and fast I think you will be very happy.

[hermans]

Thanks for the reply. I have the flat point boolit you're speaking of, and it does work very well in most of my 9mms, except for my Canik tp9SFX. For some reason the throat on that pistol is tighter than even my CZs, which are notorious for tight throats. I'm going to send that barrel out to DougGuy for him to ream out, but I'd like a boolit that I can use even if I'm not shooting one of my own pistols that have had special work done

I see below you ordered the mold from MP, great! If DougGuy can ream your barrel this boolit will work nicely.
Let us know how it shoots once you have got it going.

[asmith80]

Got the mold in the mail today. I always like getting stuff from MP molds because the newspaper they pack items in let's me keep up on all the hot Slovenian news and gossip :bigsmyl2:

Mold looks great as usual. I really like the Lee style sprue plate and I kinda wish every mold over 4 cavities could be set up with something like this. I'll try to get some casting done this weekend and post some reports

[hermans]

Got the mold in the mail today. I always like getting stuff from MP molds because the newspaper they pack items in let's me keep up on all the hot Slovenian news and gossip :bigsmyl2:

Mold looks great as usual. I really like the Lee style sprue plate and I kinda wish every mold over 4 cavities could be set up with something like this. I'll try to get some casting done this weekend and post some reports

I normally stare at the mold in admiration for a few days before I start casting, since it is just so beautiful, made to perfection by a master craftsman[smilie=w:

[asmith80]

Had a chance to get some boolit cast up and coated yesterday. I've got mostly brass molds, so the first couple fills weren't great, but as I remembered how to treat aluminum molds they got much better. Had a big pile of good boolitss in a very short time

https://i.ibb.co/YdNDF6W/IMG-20190908-095544972-HDR.jpg (https://ibb.co/qgD03zn)

Now I just need to get some dummies made up and find that sweet spot for OAL

[hermans]

asmith80,
I found that using my Dillon round nose seater plug instead of the SWC one to be much better. Very few of my rounds not passing the case gauge test. My COAL with this boolit is 28.3 mm.
Have fun!

[asmith80]

Good tip! I'll try that before I start messing around with the seating depth on my die. I've got it set perfectly for the MP 125gr. HP and if I can get away with not messing with that I'd be very happy

[Burnt Fingers]

http://www.uniquetek.com/product/T1561

If you have a Dillon seating die and load SWC bullets I highly suggest looking into the linked part.

I have them in all three sizes.

The best part....with my .45 ACP I end up loading several different SWC bullets. I never have to adjust the seating die as that stem sits on the shoulder of the bullet.

[asmith80]

Awesome! I tried loading up a couple last night and noticed they were all going in crooked, it's like you read my mind

[asmith80]

Did up 4 dummies just to do a quick feed check, all were 1.10-1.095 OAL, which is what I have my seating die set at for the MP 125gr HP that I normally use. This length feeds in my cz P10F no problem, which is my pistol with the shortest throat. I figured I'd start here since I wouldn't have to change any die settings.

All 4 dummies plunked and spun in the barrel and all 4 fed and ejected just fine with hand cycling. I'm feeling pretty good about this boolit so far. Next step will be to load up some ladders and test it out for real

[hermans]

That COAL sounds about right, seems like you are good to go now!
When you see the nice clean holes they make in the target, you will like them even more!!!

[flydad]

Let us know how your p-10 likes that load. Just ordered a CZ p-10 f and I have the no lube groove version from MP which my Walther PPQ loves. So I am curious how yours will do.

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[Dragonheart]

Your solution for bullet to barrel fit is easy to solve not just with the H&G 275, but any bullet. Bullet Jump is also a big factor in getting the best accuracy.

Since we are talking 9mm I take a sized case trimmed to .750", what I have found to be the ideal case length for accuracy. As shown in the photo make a perpendicular cut in the center of the mouth of the case using a dremel tool. Now press in the bullet just enough for it to be held in place by the tension of the case neck. Remove the barrel from your handgun, making sure your barrel and chamber are clean. Push the case w/bullet into the chamber until is seated. A 9mm headspaces on the mouth of the case. Now remove the case from the chamber. You may need a little help from a screwdriver blade as sometime it sticks a little. Assuming the bullet engaged the lands, measure the OAL of your case & bullet and to obtain the point the bullet engages the lands. Depending on the bullet design and barrel you may find the bullet has cleared the case completely, but in most cases the bullet will still be in the case. Now that you have that length you can set your seating die. Of course a bullet can only be out so far and still work in the magazine. When I find that a bullet has an excessive jump I simply seat it as long as possible and hope for the best. If you measure all your barrels using this method you will never end up with rounds that do not chamber because the bullet is seated too far out.
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[flydad]

That is beautiful my friend. An adjustable case !!

[Dragonheart]

That is beautiful my friend. An adjustable case !!

Glad you like it and so easy to do, just note to how the cartridge headspaces. It not only works with pistol cartridges it works for rifles also. You do want some bullet jump, but usually the shorter the jump the better the accuracy.

[asmith80]

Little update on my experience with this mold. I've been having a heck of a time trying to find the sweet spot for OAL that would work for my 9mms. I have a few that have been throated by DougGuy and a bunch that are not. My goal was to find a single OAL that would work for all my pistols, but it doesn't look like that's going to be as easy as I thought. If you're loading this for just one pistol, or you have a few that have generous throats, then this would be a great boolit, but if you have a variety of pistols, this one may be a bear to get to work with all of them without having to resort to multiple OALs for multiple pistols.

The boolit works beautifully when I can get it to chamber reliably, but I have other 9mm boolits that work just as well, and I can load to a standard OAL, so I think I may just use this boolit for 38/357 and save myself some headache.

[hermans]

asmith80, like I have said in my first post, it might not be the boolit for you given your requirements to work in all your barrels with different throat sizes. But it is still a very nice accurate boolit when you get it to work.
Lucky for me, I have only one 9mm pistol, so I can shoot it all day! Best of luck, and good shooting!

[flydad]

Yep maybe hermans is right , I have only 2 Walther PPQ 5" and a CZ P10 F and they both eat 'em up. These also work well in a PAK 9 ;-)