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Old July 17, 2001, 07:21 PM   #1
Cal4D4
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Join Date: June 18, 2001
Location: southern california
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.45 Wmag & .460 Rowland

Somebody know a site with case specs, web dimensions and volumes of these cases with overall lengths? Can they both be based on .308/30-06 cases? Thinking about a project and need more info on these cases.
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Old July 18, 2001, 12:13 AM   #2
Clark
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Join Date: December 4, 1999
Location: WA, the ever blue state
Posts: 2,996
I have two guns that I shoot 460 Rowland loads in:
A 20 ounce Patriot
A 15 pound Turkish Masuer in 45acp tight chamber

Starline 45 Super brass show no difference from ordinary 45 brass in threshold of
stretching or primer pocket growth. I have not seen any bulges in any 45 acp brass
yet.
I have only gone to 11.8 gr of AA#5 in a poorly supported chamber [Colt 1911], but I
have gone past 460 Rowland levels in a Patriot [pistol with good chamber
support].

0) 45 acp......................... 185 gr 7.6 gr AA#5 jams stock recoil spring
1) 45 acp......................... 185 gr 10.2 gr AA#5 1100 fps 18,000psi
2) 45 acp +P.................... 185 gr 10.8 gr AA#5 1200 fps 21,700 psi
3) 45 Super...................... 185 gr 12.4 gr AA#5 1312 fps 28,000 cup
4) 460 Rowland................ 185 gr 14.5 gr AA#5 1500 fps 38,800 cup
5) Easy extraction ............ 185 gr 15.0 gr AA#5 1550 fps 20 oz Patriot
6) Case starts to stretch..... 185 gr 15.2 gr AA#5 1770 fps 15 lb 98 Mauser
7) difficult extraction ......... 185 gr 16.0 gr AA#5 1850 fps 15 lb 98 Mauser
8) primer falls out ............. 185 gr 16.5 gr AA#5 1900 fps 15 lb 98 Mauser
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Old July 18, 2001, 01:37 AM   #3
Cal4D4
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max'd .45acp

Thanks Clark;
Going boldly where no man should go!
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Old July 18, 2001, 10:22 AM   #4
Desert Dog
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Join Date: September 22, 1999
Location: Dallas, TX
Posts: 473
Hey Clark,

Why don't you try a slower burning powder in your tests. AA#5 is quite fast and is putting undo strain on your guns with the pressure peak , based on the loads you typed...

I have done extensive .45 Super research, and the powders of choice are ALL slower than AA#5. May I recommend:

AA#7
HS-7
Ramshot Enforcer
VV N-350
Blue Dot

Be safe...

YMMV,
__________________
.45 Super... Fat and FAST... but for real firepower, .45 Blackhawk!

Yes, in fact I do have a 454... in more ways than one.

"No provision in our Constitution ought to be dearer to man than that which protects the rights of conscience against the enterprises of the civil authority" - Thomas Jefferson
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Old July 18, 2001, 01:38 PM   #5
Clark
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Location: WA, the ever blue state
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I have tried as much 2400 and H110 as fits in the case. It just doesn't have the velocity of AA#5.

Power Pistol and LONG SHOT also work.

I have read that AA#7 is best, I have that and Blue Dot lying around. I should try it.

The limiting factor is not pressure, but recoil with my three pistols. The limiting factor with the rifle is pressure. I have to kick the bolt open.

I have shot 9mm at pressures way past human extraction. I think 45 acp may have the same potential.
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Old July 18, 2001, 02:27 PM   #6
Desert Dog
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2400 and H110 are too slow. Not enough case capacity. AA#7 is IMO the best .45 ACP/Super or 460 Rowland powder there is...

Having to kick the bolt open...

CAREFUL!!!
__________________
.45 Super... Fat and FAST... but for real firepower, .45 Blackhawk!

Yes, in fact I do have a 454... in more ways than one.

"No provision in our Constitution ought to be dearer to man than that which protects the rights of conscience against the enterprises of the civil authority" - Thomas Jefferson
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