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068
44 Mag ammo... More Explanation Below…

Description: Left to right: 44Mag with 300gr XTP, 44Mag with 240gr, 44Sp with 240gr, and 44Mag with 240gr.


Bullets are 300gr XTP(L) and 240gr Magtech (R)


The case second from the left has been trimmed 1/10 of an inch to load the Magtech on the second crimp line. OAL is 1.75 for the 300gr XTP. the Magtech is 1.74


Note the blue lines on the cases. They are the bullet ends on the case indicating powder capacity.


http://www.midwayusa.com/viewProduct/?productNumber=1657228564


Duane
Poster: TCTex.
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Thread  
jamesfromjersey
Shootist

Registered: January 2004
Location: New Jersey
Posts: 7,388
Tue June 29, 2010 14:36 Rating: 10.00 

interesting

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Life member-NRA-SCI-NAHC
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"I have more guns then I need but not as many as I want" "Handgun hunters HAVE to be good"
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Franchise
Shooting Expert

Registered: December 2008
Location: Castalia, NC
Posts: 3,041
Tue June 29, 2010 15:32 Rating: 10.00 

How did you get the idea to trim the cases?
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johnwilliams
Shooting Master

Registered: January 2010
Location: illinois
Posts: 3,755
Wed June 30, 2010 03:32 Rating: 10.00 

Have you shot any deer with the 300X.T.P. and if so ,how did it perform?

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H.H.I.#8190 Colossians 1:17 And He is before all things,and by Him all things consist!
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TCTex.
Shootist

Registered: September 2007
Location: Sherman Texas!
Posts: 7,327
Fri July 2, 2010 11:39

Franchise, I got the idea to use the second crimp line from the 10.9 article I read which utilizes the second crimp line of the 300 XTP. Setting the bullet’s OAL out to 1.75 means less bullet jump and I feel like it was one of the factors in my SRH shooting sub 1.5in groups at 100 yards. When I saw the Magtech 240gr bullets with the second crimp line I immediately thought of extending the bullet out. I did some ruff estimates and quickly realized that it would be too long for the 44 Mag brass. So… let’s try the 44 sp… Not only did it work but it also gave me 1/10th of an inch more powder capacity. (roughly .830 to .920… ok so 90/100ths…) Well, the goal was to turn the OAL into 1.74. I did a few more measurements, trimmed some 44 Mag brass and set up my extra set of dies. The end result is just over a full inch of powder capacity,(1.01) even with the shortened brass. That is over 15% more powder capacity than the 44 Mag. My goal is to hit 1400fps. At that, 1400fps, it should have less kick than a standard 240gr at the same velocity. My main goal is accuracy. I just got done loading up 15 different experimental rounds. 6 of those loads were the new creation. I will let you know how the mutt did. LOL


John, I haven’t had a chance to shoot anything yet. Bug did shoot a nice pig with one… dropped that pig like it was hit with a sledge hammer.


Best regards


Duane

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Democracy is two wolves and a lamb deciding what to have for dinner. Liberty is a well armed lamb
Benjamin Franklin
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Franchise
Shooting Expert

Registered: December 2008
Location: Castalia, NC
Posts: 3,041
Fri July 2, 2010 13:39

Great Idea Duane!
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Gregg Richter
Shooting Master

Registered: January 2004
Location: Pine, Colorado
Posts: 3,694
Fri July 2, 2010 15:32 Rating: 10.00 

Very good idea IMHO...last summer I trimmed a bunch of .454 brass for a similar reason; to utilize a certain bullet's crimp groove.


Only thing is ya gotta be organized enough to keep those cases separate; and that is not one of my strong points... Smile

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The only man smarter than a wise old coyote is the one that gets him.


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