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Author Topic: 44. Mag reamed to 445 super mag on Sb1 frame?  (Read 663 times)

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Offline kybumpkin

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44. Mag reamed to 445 super mag on Sb1 frame?
« on: July 23, 2009, 06:57:32 PM »
I'm waiting on a 44 Mag mounted on a Sb1 to come back from Ilion, I've been reading about rechambering to 445 super mag. is this safe on a Sb1 or would this be not advised ?
                                                                   Thanks in advance, Tony
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Offline quickdtoo

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Re: 44. Mag reamed to 445 super mag on Sb1 frame?
« Reply #1 on: July 23, 2009, 08:05:55 PM »
There's no SAAMI max pressure for the 445 Supermag, but AA's data shows loads to 43.3kcup which is about 3kcup over that of the 44mag. Since the SB1 is just cast iron, I wouldn't recommend hot loads, but if you didn't hotrod it, it should work fine.

Tim

http://www.accuratepowder.com/data/PerCaliber2Guide/Handgun/Standarddata/44Cal(10.97mm)/445%20Super%20Mag%20page%20136.pdf
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Offline kybumpkin

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Re: 44. Mag reamed to 445 super mag on Sb1 frame?
« Reply #2 on: July 24, 2009, 08:24:27 AM »
thanks Tim, 
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