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Author Topic: Tomorrows project/ .450 Ackley Magnum.  (Read 18928 times)

Offline Boss .300 winmag

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #15 on: April 24, 2015, 04:57:09 PM »
That is a cool looking rifle.  How do you fire form the .375 cases to the Ackley?

You use a ample charge of faster burning pistol powder, which is considerably less than a full house charge of rifle powder. You drop the pistol powder charge in the case, then I pack a small wad of tissue on top and pack it with a proper sized wood dowel. I then use a powder funnel and fill the case with dry "Cream of Wheat cereal, then pack another small wad of tissue on top. Chamber it and fire it, the pressure of the faster burning pistol powder blowing the cereal out of the case expands the .375 H&H case to the .458 Ackley chamber. I then load the case with a mid range .450 ACKLEY load and fire it. Then the case is completly formed and its time to stuff as much powder in it as the case is capable of handling.

That's got to be expensive, how many times can you reload with full charges before she cracks the cases?  :dunno:
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Offline jay.sharkbait

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #16 on: April 24, 2015, 05:08:23 PM »
That is a cool looking rifle.  How do you fire form the .375 cases to the Ackley?

You use a ample charge of faster burning pistol powder, which is considerably less than a full house charge of rifle powder. You drop the pistol powder charge in the case, then I pack a small wad of tissue on top and pack it with a proper sized wood dowel. I then use a powder funnel and fill the case with dry "Cream of Wheat cereal, then pack another small wad of tissue on top. Chamber it and fire it, the pressure of the faster burning pistol powder blowing the cereal out of the case expands the .375 H&H case to the .458 Ackley chamber. I then load the case with a mid range .450 ACKLEY load and fire it. Then the case is completly formed and its time to stuff as much powder in it as the case is capable of handling.

That's got to be expensive, how many times can you reload with full charges before she cracks the cases?  :dunno:

There isn't  anything cheap about the big 45's. Throwing 90-100 grains of powder at a time makes short work of a pound of powder and decent projectiles aren't cheap either.

That said, you don't do a lot of plinking with it. :chuckle:

Offline Biggerhammer

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #17 on: April 24, 2015, 05:11:57 PM »
Ive lost very few wildcat cases over the years due to cracked necks or belts. I only neck size after the first fire form load, bump the shoulder a little when needed and anneal religiously. I loose far more cases to pushing a cartridge hard and loosening primer pockets. If one loads sanely, brass can last a long, long time. I have 100 pieces of 7x57 brass that I have loaded numerous times for over 27 years and it's still good to go.

Offline Dan-o

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #18 on: April 24, 2015, 06:00:54 PM »
My shoulder hurts just reading this.......
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I wonder how many people will touch their nose to their screen trying to read this...

Online xXLojackXx

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #19 on: April 24, 2015, 09:48:59 PM »
I want a video of this bad boy being sent down range.

Offline j_h_nimrod

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #20 on: April 24, 2015, 10:17:00 PM »
I have one of these built on a stainless Montana Rifle Company 1999 action, it is certainly a serious rifle and I love it! It does not look as nice as yours but is functional.

For plinking I like using a 350gr Hornady at about 3200fps :)  I have formed magnum basic brass and A-Square brass and was very disappointed in the quality of the A-Square. The primer pockets needed a lot of work and are still difficult to seat primers in. You are good off forming from .375 and should be happy. If you can stand being a few hundreths shorter you can shoot .458 Lott as well and it fire forms nicely.

Accuracy is great and recoil stout. I have a couple videos of some guys shooting reduced loads and still getting set back on their heels, if I can find it I will post.

Offline JimmyHoffa

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #21 on: April 24, 2015, 10:28:56 PM »
Is that tiger maple?  Looks like an awesome rifle.  Gotta be a fun project!

Offline Alchase

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #22 on: April 24, 2015, 10:53:45 PM »
When I started reading "Tomorrows project/ .450 Ackley Magnum." I thought I was in another AR build thread,  :dunno:
I was like "that sounds awesome, ..................................wait what the!!!!!  :yike:

The round bullets gave you away,
LOL

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Offline sled

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #23 on: April 24, 2015, 11:57:11 PM »
Might as well stand behind a donkey and kick him in the ass! :chuckle:  have fun :tup:interesting for sure.

Offline Biggerhammer

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #24 on: April 25, 2015, 08:18:36 AM »
I have one of these built on a stainless Montana Rifle Company 1999 action, it is certainly a serious rifle and I love it! It does not look as nice as yours but is functional.

For plinking I like using a 350gr Hornady at about 3200fps :)  I have formed magnum basic brass and A-Square brass and was very disappointed in the quality of the A-Square. The primer pockets needed a lot of work and are still difficult to seat primers in. You are good off forming from .375 and should be happy. If you can stand being a few hundreths shorter you can shoot .458 Lott as well and it fire forms nicely.

Accuracy is great and recoil stout. I have a couple videos of some guys shooting reduced loads and still getting set back on their heels, if I can find it I will post.

Yes, you can shoot .458 Lott or .458 Winchester through it. The .458 Winchester form with almost no neck. I was reading some history on the cartridge and read where a PH in Africa used his .450 Ackley Magnum with factory .458 Winchster ammo to cull buffalo due to the fact he had no Ackley ammo and it worked just fine. Of course the .458 Winchester brass is worthless after being fired in the Ackley chamber due to it being so short and having a non existent neck after firing.

Offline carpsniperg2

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #25 on: April 25, 2015, 09:50:47 AM »
That's some cool stuff right there :tup:
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Offline Biggerhammer

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #26 on: April 25, 2015, 12:52:13 PM »
By all means carry on!  :tup: That's great stuff, I have a old school 7x57 that I would really like to have stocked in a classy dark Bastogne Walnut.

Offline jay.sharkbait

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #27 on: April 25, 2015, 03:01:47 PM »
Yea it gets better:













Enough of hijacking Bigger Hammer's post.     I will start another thread if you want to see more photos.


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Offline fastdam

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #28 on: April 25, 2015, 03:04:37 PM »
Thats a beautiful rifle and this is a cool thread.

Offline 257 Wby Mag

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Re: Tomorrows project/ .450 Ackley Magnum.
« Reply #29 on: April 25, 2015, 03:08:43 PM »
Ya that's for sure.. love nice wood, this has t he wheels spin in, I'm thinking 416 rem mag on my enfield....
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