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Author Topic: 445 SM powder  (Read 1560 times)

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Offline littledog

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445 SM powder
« on: March 01, 2014, 12:33:35 AM »
With this winter hanging on all I can do is dream about reaming my 44. The only good thing is I have time to read old post on reloading for it. Like  others some powder are hard to come by here. Cant find AA 1680  had a bad experience with H 110 /W296 Has anyone used A 5744 I was wondering about IMR 4198 have not found any load data for it thou . What do you guys use
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Offline gendoc

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Re: 445 SM powder
« Reply #1 on: March 01, 2014, 12:46:57 AM »
I use lil'gun and imr-4227
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Offline petemi

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Re: 445 SM powder
« Reply #2 on: March 01, 2014, 12:51:46 AM »
Same here John. 

littledog, PM me your email address and I'll send you all I have on the .445.

Pete
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The growing Handi/Sportster/Pardner/Topper Family:  .22 WMR, .22-250. 223, Two Superlight 7mm-08s and one .243, .30-30,  .308, 32-20, 18 inch .356/.358 Win., Two 16.5 inch .357 Max., 18 inch 38-55 BC Carbine, 16.5 inch .445 Super Mag., .45LC, 16.5 and 22 inch .45-70s, .50 Huntsman SS, .410, 20 ga., 12 ga., 20 ga. Pardner Pump, Versa-Pack .410 - .22
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Offline quickdtoo

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Re: 445 SM powder
« Reply #3 on: March 01, 2014, 01:21:32 AM »
Reamer is available!  ;) I only have 1680 data, I used H110 in mine with the 265gr FTX, so I'm not much help for ya.  :-\

Tim

EDIT: Hornady lists 5744 for all their .430" jacketed bullets in the 8th edition.

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Offline Trophy Tom

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Re: 445 SM powder
« Reply #4 on: March 01, 2014, 01:30:02 AM »
Hey guys didn't I read that the
357 max in the FAQs is usable on the sb1 or old cast irons  H&Rs
( kind of a controversial issue)
But the 445 supermag is not to be used on anything but an SB2
Receiver
Tom


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Offline quickdtoo

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Re: 445 SM powder
« Reply #5 on: March 01, 2014, 02:30:11 AM »
Maxi is fine on SB1, 445 isn't recommended on an SB1 due to the larger case head(.379" v .457") and fairly high pressure data in comparison, there's no SAAMI spec for the 445 and old data runs 43-47kcup compared to 36kpsi for the 44 mag.

Tim
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Offline jedman

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Re: 445 SM powder
« Reply #6 on: June 09, 2021, 03:32:45 PM »
 I know that 1680 gives top velocities and good accuracy but seems to have a lot of muzzle flash.
Out of a 20” barreled rifle I can see the flash even during bright daylight.

jedman
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