MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Moderators: gds, bakerjw, Dolomite_Supafly

bluejay75
Member
Posts: 14
Joined: Tue May 01, 2018 10:36 pm

MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by bluejay75 » Fri May 18, 2018 8:15 am

Greetings fellow 300 Black Casters,

http://castboolits.gunloads.com/showthr ... vity-Solid

This is going to be a winner. Medium to soft alloy (range scrap) and hollow pointed it should expand at 8-1000 fps.

BulletFlight for Android
45r
Silent But Deadly
Posts: 389
Joined: Sun Sep 25, 2011 8:30 pm

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by 45r » Sat May 19, 2018 10:10 pm

HP diameter and length?
Any detailed drawing yet.

bluejay75
Member
Posts: 14
Joined: Tue May 01, 2018 10:36 pm

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by bluejay75 » Sun May 20, 2018 8:48 am

45r wrote:HP diameter and length?
Any detailed drawing yet.
Its on the link. I have tried to figure out how to post pics here...will try to get one up later.

This is a cramer hollow point mold. So its made shallow enough to expand throughout the reasonable velovity range without falling apart. That said, I think youre going to have to run 10-12 BHN (Air cooled range scrap or wheelweight 50:50) to get this to expand fully at subsonic.

User avatar
Flatliner
Silent But Deadly
Posts: 261
Joined: Tue Nov 17, 2015 4:43 pm

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by Flatliner » Sun May 20, 2018 1:05 pm

On the list

45r
Silent But Deadly
Posts: 389
Joined: Sun Sep 25, 2011 8:30 pm

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by 45r » Sun Jun 03, 2018 7:39 am

bluejay75 wrote:
45r wrote:HP diameter and length?
Any detailed drawing yet.
Its on the link. I have tried to figure out how to post pics here...will try to get one up later.

This is a cramer hollow point mold. So its made shallow enough to expand throughout the reasonable velovity range without falling apart. That said, I think youre going to have to run 10-12 BHN (Air cooled range scrap or wheelweight 50:50) to get this to expand fully at subsonic.
I think a lot of people are using powder coeted bullet designs now.
Especially in AR's suppressed.
For cast hollow point bullets the wedge nose expands better than the nose shape shown for the GB molds.
That design tends to cave in instead of expanding outwards sometimes.
I have a wedge shaped 235 bullet and it expands easily and will blow through several milk jugs and slit them wide open with at least a half inch exit.
I drill the HP's since Accurate molds doesn't offer a HP mold.
Not trying to derail the group buy but if another GB with a wedge shape HP and powder coat compatible comes out it would perform very well for hunting and accuracy if loaded right.
However wedge designs like feed ramps designed for 300BLK and not 223.
223 ramps can be altered with a dremel easily though.
I get half inch groups at 50 yards with my 16 inch DCA upper.

bluejay75
Member
Posts: 14
Joined: Tue May 01, 2018 10:36 pm

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by bluejay75 » Sun Jun 03, 2018 1:02 pm

45r wrote:
bluejay75 wrote:
45r wrote:HP diameter and length?
Any detailed drawing yet.
Its on the link. I have tried to figure out how to post pics here...will try to get one up later.

This is a cramer hollow point mold. So its made shallow enough to expand throughout the reasonable velovity range without falling apart. That said, I think youre going to have to run 10-12 BHN (Air cooled range scrap or wheelweight 50:50) to get this to expand fully at subsonic.
I think a lot of people are using powder coeted bullet designs now.
Especially in AR's suppressed.
For cast hollow point bullets the wedge nose expands better than the nose shape shown for the GB molds.
That design tends to cave in instead of expanding outwards sometimes.
I have a wedge shaped 235 bullet and it expands easily and will blow through several milk jugs and slit them wide open with at least a half inch exit.
I drill the HP's since Accurate molds doesn't offer a HP mold.
Not trying to derail the group buy but if another GB with a wedge shape HP and powder coat compatible comes out it would perform very well for hunting and accuracy if loaded right.
However wedge designs like feed ramps designed for 300BLK and not 223.
223 ramps can be altered with a dremel easily though.
I get half inch groups at 50 yards with my 16 inch DCA upper.
The wedge as a solid does not track straight through ballistics gel or flesh. Your design IS GOING TO YAW AND/ OR TUMBLE if it doesnt expand. This has enough meplat to hollow point and enough of a taper to feed. This was prototyped on a lathe and run for function by the designer...Hes an old school engineer that has 20-30 original designs that are copied by almost all of the major mold makers. So I trust his judgement.

45r
Silent But Deadly
Posts: 389
Joined: Sun Sep 25, 2011 8:30 pm

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by 45r » Sun Jun 03, 2018 6:25 pm

Mihec molds are a work of art.His hp molds are a better design than the Noe hp.
The hornady sub X works very well and is what I've been leaning to lately.
I have the Noe mold and it's very accurate.
I drilled out the lube grooves on it.
The wasp waist is interesting and should work and be just as good.

User avatar
bangbangping
Silent But Deadly
Posts: 2612
Joined: Sun Sep 15, 2013 6:34 pm
Location: Texas Gulf Coast

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by bangbangping » Thu Oct 18, 2018 1:02 pm

Bump in case anyone missed it. The buy should close soon.

Personally I've been shooting the NOE HP for a while and have it shooting well with good expansion, but find the pin setup to be a PITA so I'm giving this one a try. No idea how this new design will function, but it's supposed to feed better in AR's and stack better in the mag. Also available without lube grooves for powder coating.

http://castboolits.gunloads.com/showthr ... d-6C-Solid

Image

User avatar
strobro32
Silent But Deadly
Posts: 172
Joined: Fri Apr 04, 2008 8:18 pm

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by strobro32 » Thu Jan 30, 2020 7:25 pm

HP Molds are in! They are pretty.

Only took 2 years. :lol:
If it doesn't splatter, shatter, burst, boing or explode, it's not worth shooting.

User avatar
bangbangping
Silent But Deadly
Posts: 2612
Joined: Sun Sep 15, 2013 6:34 pm
Location: Texas Gulf Coast

Re: MP Molds 300 BO 230 grain Hollow Point Group Buy active...

Post by bangbangping » Sat Feb 01, 2020 5:15 pm

Meh. This is a high quality mold, and casting with it is nice. But the pin is about half the diameter of the NOE and not as deep.
This is ~980 fps into Clear Ballistics gel. Max expansion is just under 1/2".
I won't be hunting with it. That's a bummer given the cost and the wait.
Image

Post Reply