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Other Ammunition Calibers => Factory Ammo => Topic started by: mt10mm on December 12 2015 08:00:22 AM MST

Title: 45ACP
Post by: mt10mm on December 12 2015 08:00:22 AM MST
Does anyone have any experience with UW 255gr hardcast?
Title: Re: 45ACP
Post by: TSP45ACP on December 12 2015 07:13:57 PM MST
Nope, only my own.
Title: Re: 45ACP
Post by: mt10mm on December 12 2015 07:51:18 PM MST
Shot the UW load today from my Glock 30 and they are on the stout side. My guess is they will penetrate very well. They sure will make a large hole in whatever it hits.
Title: Re: 45ACP
Post by: Osageid on December 12 2015 08:16:25 PM MST
I have shot their 200 gr JHP - stout is appropriate
Title: Re: 45ACP
Post by: The_Shadow on December 12 2015 09:05:49 PM MST
Need to pull one down to see what he is using... ::)
Title: Re: 45ACP
Post by: mt10mm on December 12 2015 09:22:26 PM MST
Quote from: The_Shadow on December 12 2015 09:05:49 PM MST
Need to pull one down to see what he is using... ::)

PM me you shipping info and I will send you one :)
Title: Re: 45ACP
Post by: The_Shadow on December 12 2015 09:45:57 PM MST
Quote from: MT10mm on December 12 2015 09:22:26 PM MST
Quote from: The_Shadow on December 12 2015 09:05:49 PM MST
Need to pull one down to see what he is using... ::)

PM me you shipping info and I will send you one :)

PM sent... 8) :D

Underwood Technical Information

Caliber: 45 ACP +P
Bullet Weight: 255 Grains
Bullet Style: Hard Cast Flat Nose 21 BHN
Case Type: Brass

Ballistics Information:

Muzzle Velocity: 925 fps
Muzzle Energy: 484 ft. lbs.
Title: Re: 45ACP
Post by: gandog56 on December 13 2015 07:22:06 AM MST
I haven't bought any storebought .45 since....well since when I got in my .45 dies I ordered after I bought my first .45. I think over the last twenty years, I bought a grand total of one box.
Title: Re: 45ACP
Post by: mt10mm on December 13 2015 11:58:48 AM MST
Quote from: The_Shadow on December 12 2015 09:45:57 PM MST
Quote from: MT10mm on December 12 2015 09:22:26 PM MST
Quote from: The_Shadow on December 12 2015 09:05:49 PM MST
Need to pull one down to see what he is using... ::)

PM me you shipping info and I will send you one :)

PM sent... 8) :D
I will get it out to you tomorrow
Title: Re: 45ACP
Post by: The_Shadow on December 18 2015 04:53:22 PM MST
MT10mm here is the info documented for the 255 Hard Cast
Cartridge is from Ammo Manufacture: Underwood 255gr +P Hard Cast (21BHN) (supplied by MT10mm)
Ballistics Information: 45 ACP +P
Muzzle Velocity: 925 fps
Muzzle Energy: 484 ft lb
Brass Make/Headstamp: Star Line – Brass +P
Bullet Make/Weight/Construction/Info; Length 0.6690"/Dia. 0.4520": 255 gr. HCFN
Actual weight 245.0 grains (exposed lead base) Crimp line N/A
MEPLAT: 0.2850"
C.O.A.L.: 1.2040" 
Primer: Large Pistol Nickel color
Case: Diameter 0.4710" Crimp Diameter 0.4725" Length 0.8930"
Powder Description/Positive ID/Type/Charge Weight: LOVEX D037-01 11.4 grains *
* (very fine irregular ball) (D037-01 same as AA#7 by weight)

(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0202_zpss0rvcdyq.jpg)

(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0203_zpsynjugi5m.jpg)

(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0204_zpsoaczm0z1.jpg)

(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0205_zpspdnfgm9h.jpg)
Title: Re: 45ACP
Post by: mt10mm on December 18 2015 06:04:18 PM MST
Stout load for sure. I think this is the best "woods load" available for the 45acp. I wonder how well it will penetrate?
Title: Re: 45ACP
Post by: fltbed on December 19 2015 06:17:12 AM MST
Quote from: The_Shadow on December 18 2015 04:53:22 PM MST
MT10mm here is the info documented for the 255 Hard Cast
Cartridge is from Ammo Manufacture: Underwood 255gr +P Hard Cast (21BHN) (supplied by MT10mm)
Ballistics Information: 45 ACP +P
Muzzle Velocity: 925 fps
Muzzle Energy: 484 ft lb
Brass Make/Headstamp: Star Line – Brass +P
Bullet Make/Weight/Construction/Info; Length 0.6690"/Dia. 0.4520": 255 gr. HCFN
Actual weight 245.0 grains (exposed lead base) Crimp line N/A
MEPLAT: 0.2850"
C.O.A.L.: 1.2040" 
Primer: Large Pistol Nickel color
Case: Diameter 0.4710" Crimp Diameter 0.4725" Length 0.8930"
Powder Description/Positive ID/Type/Charge Weight: LOVEX D037-01 11.4 grains *
* (very fine irregular ball) (D037-01 same as AA#7 by weight)

That's close to my 45 acp "heavy" load.
255 gr SWC "Keith" (260 gr actual)
10.0 gr #7  (10.5 gr book max)
Winchester primer
Vel- 940 f.p.s. (5" SA 1911 factory bbl)

Jeff
Title: Re: 45ACP
Post by: Captain O on December 23 2015 12:13:58 AM MST
Just when you think the .45 ACP has reached it's limits. "Pushing the envelope" seems to be "the phrase of the day" when it comes to Underwood's loads.

Captain O
Title: Re: 45ACP
Post by: fltbed on December 23 2015 01:29:53 PM MST
Quote from: Captain O on December 23 2015 12:13:58 AM MST
Just when you think the .45 ACP has reached it's limits. "Pushing the envelope" seems to be "the phrase of the day" when it comes to Underwood's loads.

Captain O
I got the idea from reading John Taffin articles back in the 90's.  Trying to duplicate the old black powder 45 Colt load the ACP was replacing.  His pet load was a +P load of 6.0gr-6.5gr of Unique for around 850 f.p.s.  I did the same thing testing with newer slower burning powders I thought would be more appropriate without having to go up into the +P pressures.
Title: Re: 45ACP
Post by: sqlbullet on December 23 2015 02:13:06 PM MST
The US Military load for the 45 Long Colt was 30 grains of black powder under a 250 grain bullet for 800 fps.

Commercial loads of the time used 35 grains of black powder with the same bullet for 900+ fps.

http://gunsmagazine.com/black-powder-cartridge-ballistics/

The 45 ACP was meant to be between the 45 Schofield and 45 Colt in ballistics, and fits that description nicely.
Title: Re: 45ACP
Post by: Captain O on December 23 2015 02:52:03 PM MST
It s too bad that the US Government Ordnance Department couldn't have retained the .45 S&W (Schofield). With the longer case, (sans the "baloon" head) and thicker case walls, the Department could have attained 1000 fps with 230 lead bullet for use in both the S&W 1917 and Colt's New Service revolvers. With 1929's advent of heat treatment, It would have been advantage during "the war to end all wars".

Captain O
Title: Re: 45ACP
Post by: gandog56 on January 28 2016 06:41:39 PM MST
Ahhh, but then we probably would not have John Moses Browning's wonderful creation of 1911.
Title: Re: 45ACP
Post by: Captain O on February 12 2016 03:46:44 PM MST
If the revolver is such a poor choice, why, with a shortage of 1911 pistols during WW1, were Colt's Manufacturing and S&W call upon to supply their double-action revolvers for military service?

You can give that some consideration.
Title: Re: 45ACP
Post by: sqlbullet on February 12 2016 05:07:25 PM MST
It isn't that they were a poor choice.  The M1917's were fine revolvers.  I lament that they are so dang expensive today.

But, the M1911 was lighter (.06 lbs), smaller (8.5" vs 10.8"), carried two extra rounds in condition 1 or 2, and was much faster to reload.  It is a better platform for a sidearm.

We pressed S&W and Colt for M1917's because they had lots of revolver production capacity in place, and would have needed a good bit of time to ramp M1911 production capacity.  Plus, a sidearm is NOT a primary weapon for a soldier.  If you were expected to fight, you had a rifle.  If you weren't expected to fight, then, in the words of Sgt.Major Plumley, there are plenty [of rifles] available if you need one.
Title: Re: 45ACP
Post by: Captain O on February 12 2016 06:49:22 PM MST
There was a shortage on M1911 pistols. That was the primary reason! (I knew this because my daddy told me the original story). It pays to be a member of a military family. They worked, and worked well. Lots of "doughboys" owe their lives to the M1917 S&W Revolver and it's Colt counterpart.
Title: Re: 45ACP
Post by: sqlbullet on February 12 2016 07:45:14 PM MST
Quote from: Captain O on February 12 2016 06:49:22 PM MST
There was a shortage on M1911 pistols. That was the primary reason! (I knew this because my daddy told me the original story). It pays to be a member of a military family. They worked, and worked well. Lots of "doughboys" owe their lives to the M1917 S&W Revolver and it's Colt counterpart.

The shortage of pistols drove a need to acquire handguns, but  if they could have tooled up fast to make M1911's, the 1917 never would have been.  But, they didn't have auto making capacity in reserve.  Revolver capacity they had.
Title: Re: 45ACP
Post by: Captain O on February 12 2016 09:52:15 PM MST
Quote from: sqlbullet on February 12 2016 07:45:14 PM MST
Quote from: Captain O on February 12 2016 06:49:22 PM MST
There was a shortage on M1911 pistols. That was the primary reason! (I knew this because my daddy told me the original story). It pays to be a member of a military family. They worked, and worked well. Lots of "doughboys" owe their lives to the M1917 S&W Revolver and it's Colt counterpart.

The shortage of pistols drove a need to acquire handguns, but  if they could have tooled up fast to make M1911's, the 1917 never would have been.  But, they didn't have auto making capacity in reserve.  Revolver capacity they had.

In spades!