« previous next »
Pages: [1]   Go Down

Author Topic: 300BLK to the Max!!  (Read 927 times)

0 Members and 2 Guests are viewing this topic.

Offline ibgp3

  • Trade Count: (29)
  • A Real Regular
  • ****
  • Posts: 507
  • Gender: Male
  • Recovering after nearly 40 years of PTSD
300BLK to the Max!!
« on: March 09, 2012, 12:23:08 AM »
A 300BLK rimmed type cartridge (30-357) next to a Maxi version.

The range report on the Maxi version shows 110 grainers @~3000fps and 150's @~2500fps.
If you want to stay rimless, .223 brass necked to .30 would be about a tenth of an inch longer.
...or, with a Handi. cut the .223 brass by .1" and shoot either.


Come on 300BLK!!
Logged

Offline jeepmann1948

  • GBO Supporter
  • Trade Count: (67)
  • Senior Member
  • *****
  • Posts: 1422
  • Gender: Male
  • San Angelo, Texas
Re: 300BLK to the Max!!
« Reply #1 on: March 09, 2012, 01:08:03 AM »
Quote:
"or, with a Handi. cut the .223 brass by .1" and shoot either."
Another option is to use 222 Brass and have not so much to trim
Still another option if you could find some of the European or Australian Rimmed 222 brass neck them up and be done :o
Logged
"it ain't what you shoot em with......................
  it's where you hit em "

Offline twoshooter

  • Trade Count: (7)
  • Senior Member
  • *****
  • Posts: 1259
  • Gender: Male
  • Remember the Starfish......
Re: 300BLK to the Max!!
« Reply #2 on: March 09, 2012, 01:23:27 AM »
Looks awesome dude! 8)
Logged
1000 years ago Men KNEW the Earth was the center of the Universe.....500 years ago Men KNEW the world was flat....... 15 minutes ago you KNEW man was alone in the universe.... Just IMAGINE what we will know tomorrow !! "K"- from Men in Black.

Offline jedman

  • GBO Supporter
  • Trade Count: (24)
  • A Real Regular
  • *****
  • Posts: 921
  • Gender: Male
  • Retired and livin the dream !
Re: 300BLK to the Max!!
« Reply #3 on: March 09, 2012, 02:16:16 AM »
   If you are really getting 2500 fps with 30 cal. bullet in a necked 357 max. case the pressure would have to be somewhere north of safe.
  Compare the case capacity of that to a 30-30 AI and it just doesnt seem possible.
     Jedman
Logged
Current handi family, 24 ga./ 58 cal ,50-70,  45 smokeless MZ, 44 belted bodeen, 44 mag,.375 H&R (wildcat),375 Win.,357 max, .340 MF ( wildcat ), 8 mm Lebel, 8x57, .303 British, 270 x 57 R,(wildcat) 256 Win Mag, 2 x 243 Win,2 x 223 Rem. 7-30 Waters &20ga.,

Offline ibgp3

  • Trade Count: (29)
  • A Real Regular
  • ****
  • Posts: 507
  • Gender: Male
  • Recovering after nearly 40 years of PTSD
Re: 300BLK to the Max!!
« Reply #4 on: March 09, 2012, 04:08:49 AM »


I don't have one yet, and I didn't test it;
....but I did look at 30TCU data before I passed it on.

I think if you look for 30TCU load data on the net it will be a little more believable.
30TCU and the Maxi necked to .30 will be close enough to use the same starting loads and expect comparable velocities. This kind of cartridge, like the 7.62x39 can teach us something about efficiency.

Logged

Offline jon f

  • Trade Count: (0)
  • Avid Poster
  • **
  • Posts: 172
  • Gender: Male
Re: 300BLK to the Max!!
« Reply #5 on: March 09, 2012, 09:22:58 PM »
.223 necked up to 30 cal is called 30 Apache
 
Logged
Badges,we don't need no stinking badges.

Offline jon f

  • Trade Count: (0)
  • Avid Poster
  • **
  • Posts: 172
  • Gender: Male
Re: 300BLK to the Max!!
« Reply #6 on: March 09, 2012, 09:24:51 PM »
Also 222 rimmed is the same as 357 maximum necked to 222.
 
Logged
Badges,we don't need no stinking badges.

Offline ibgp3

  • Trade Count: (29)
  • A Real Regular
  • ****
  • Posts: 507
  • Gender: Male
  • Recovering after nearly 40 years of PTSD
Re: 300BLK to the Max!!
« Reply #7 on: March 09, 2012, 11:54:27 PM »
Google " .223 necked up to 30 cal" and you get 8960 results.
On the first page I got:
7.62x45
30TCU
30/223
7.62x40WT
...and they don't all have the same taper or shoulder angle.


If a rim is cut on a .222 chamber, .222 rimmed would seem like a good name.
...but if the same length chamber is 5.56 TCU cut short and rimmed, .222 rimmed would be a poor name choice IMHO.


My point:
Wildcats are not all the same.
"30 Apache is a .223 necked up to 30 cal"
" I make 222 rimmed  from 357 maximum brass"
...are true statements.
".223 necked up to 30 cal is called 30 Apache"
"...... 222 rimmed is the same as 357 maximum necked to 222."
Leave a lot out.
Logged
Pages: [1]   Go Up
« previous next »