(MiHec) What next for 10mm / 40sw?

[Blanco]

More Boolit drivel

Attachment 113418
More of the same basic concept except in this case the nose radius is a bit less along with a smaller meplat.
In order to maintain the weight material is shifted to the base. The tradeoff is loss of case volume. This design would have fewer feeding issues, but would require a smaller diameter for the hollow point.
The unknown ( in my case ) is what effect the weight shift will have ??
The possibility is more bearing and sealing surface against the barrel, along with increased drag and a decrease in available powder volume. This may necessitate using a faster powder to make up the difference.
This might seem a bit counter to the accuracy formula, but I will say this same scenario works extremely well in the 45ACP and the heavy projectiles (230 Gr) when using Bullseye.

[Blanco]

If you add a hole does it make it more less, or more or less more?

Attachment 113425

[mongo404]

With the thousands of coated boolit I have loaded now. I have found it is alot better to have a bevel base. If you can add tht to your design I would definitely buy one

[Blanco]

Duly noted
Will add bevel base to no groove designs

[jayjay1]

Interesting point.

When reading this I realized, that ARES, the first commercial caster which did coat their bullets, has all BB bullet designs, just for the heck of it or for some reason.

[mongo404]

My experience has been with a BB is that it casts better and the biggest note worthy thing IMO is that it allows ease of loading. You really dont want to scrape the coating off when seating. I know I know bell the brass. But when your loading 40 you want to eliminate as much stress on the brass as possible. Thus a bevel base allows you not to have to bell your used brass as much. I pick up all my brass plus all the range brass I can get and reload as many times as possible.

I would prefer 170-180 grain mold 6 cavity aluminum. Similar to the one Mihec did in 9mm no lube groove. It is a awesome mold. Just my 2cents

[harley45]

Thinking on this a bit I'd kinda like to have the 200grainer in no lube groove with a bevel base since I just got into Powder coat.

[Blanco]

Interesting point.

When reading this I realized, that ARES, the first commercial caster which did coat their bullets, has all BB bullet designs, just for the heck of it or for some reason.

It does have advantages... one being that some re-sizers push the bullet thru base first. It also makes them sit nicely in the cases when reloading. It should come out of the mold a bit easier

[Blanco]

I worked it over a bit

Attachment 114020
Added bevel and reduced HP dia.
The more I look at this design the more it grows on me.
I think I need one!

[Blanco]

a few dimensional changes to maintain 180 gr w the HP

Attachment 114023

I need someone to run a weight calc on this one for me.
I tried to use the Lilja program on my computer and the program hosed up my machine

[Pinsnscrews]

210-220gr For use in a 10mm
either a WFN style or SWC design...

just my $0.02...

[mongo404]

https://www.hardlineindustries.com/.40cal-10mm.html

[jayjay1]

Well, as I´m starting now the CB-thingy, hopin it will work, I´m joining in to Blanco´s design.

200gr./180gr. HP or so, without "loop" grooves.

[Blanco]

I haven't had anyone jump at running the design thru a program to calculate weight.
Big guess here. I am thinking that with HP it should be 180Gr.+ without should be 190.
I would be interested to hear from one or more of the mold manufacturers. I would again guess that with this design it could easily be run on a lathe with conventional tooling? I think that is how Tom at Accurate is able to build his molds so quickly ?
I wish I had the extra time and loads of extra cash to play with. As it would just be a hobby, But I would still like to cut a mold and then load and test all in the same day !
I'm also sure Tom and AL and Miha and the others would all say it's not all fun and games, it's hard work. I have no doubts at all they would say that.

[Blanco]

Mongo
I had a look at the Hardline 180 mold.
It looks great, and here comes the however ... It appears too long in the nose to work in a .40 S&W, If memory serves, .285 outside the case is the design maximum for .40 S&W. I am not saying it won't work, some pistols would feed it. most likely it would jam up on the ramp?

Just what I see

Attachment 115051

[Blanco]

Correction
Derek at Hardline sent me information on the nose length of their .40 mold
" The nose length of our design is 0.255" and will work in a 40 S&W"
So there you have it straight from the man.

[mongo404]

I pulled the trigger on the hardline mold. When it arrives I will post some results.
They gave a 4 week estimated delivery time so hopefully in 3 weeks we will have some results.
I'm running mine in a STI 2011. They will run a oal of 1.2" . I load mine closer to factory specs at 1.135" since I also shoot glocks. We will see!

[jayjay1]

Would be interesting.

My problem in the past with the no-edge at the shoulder was that I can´t fix the OAL.

Had this problem with the TC175-boolits from Lyman.
They fell out of the mold out-of-round, so when I sized them the bullet shoulder was uneven.
When I turned them round in my hand, the so sized shoulders edge was going up and down like a wave.

So I had to set them more back, taking the highest "wave-point" as a reference point.
Accuracy wasn´t at its best so.

Am interested how the Hardline mold will do.

[mongo404]

Would be interesting.

My problem in the past with the no-edge at the shoulder was that I can´t fix the OAL.

Had this problem with the TC175-boolits from Lyman.
They fell out of the mold out-of-round, so when I sized them the bullet shoulder was uneven.
When I turned them round in my hand, the so sized shoulders edge was going up and down like a wave.

So I had to set them more back, taking the highest "wave-point" as a reference point.
Accuracy wasn´t at its best so.

Am interested how the Hardline mold will do.

I have been casting and loading the Lee TC 175 and using my own enamel paint coating. Which that style doesn't have a distinct shoulder either. I haven't experienced any issues with OAL. Not sure why the shoulder would have any??

[41mag]

I would be joyous if you simply did a rerun of the 200;195;180 version and then I would have what I need. I would even order an extra set of large pins and finish up my collection.

I also would be fine with a limited number run to get it done quicker if needed. Just make sure you shoot me a pm so I don't miss out entirely.

Oh yea almost forgot, Oreo you PM box is full....