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Offline rdlange

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45-70 barrels question
« on: November 01, 2011, 02:26:13 PM »
How much better performance will I get with the 32" BC over the 22" standard using the same load?  Should be more, but how much?

Do I go with a slower powder for the longer barrel?

Couldn't find anything positive with search.

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Offline 45-70.gov

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Re: 45-70 barrels question
« Reply #1 on: November 01, 2011, 02:41:39 PM »
i cut my barrel  from 22 to 16
i know thaTS NOT WHAT YOUR ASKING ABOUT
 i chronograph  2 factory loads.........405 cast and 300  jacketed...
before and after  ....[4 shots each  i think]


both  lost approx 100 feet per second


i have not  chronied  my  32 inch BC  yet


a 45-70 shorty  is SOOOOOO powerful 
i don't see a need for any more barrel


but   if  i wanted  to push the limits
i would do it with a 32 inch barrel.........AND A NEW RECOIL PAD
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Offline tacklebury

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Re: 45-70 barrels question
« Reply #2 on: November 01, 2011, 03:23:33 PM »
Slower powder for the longer barrel.  ;)  Works good for BP also.
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Offline ratdog

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Re: 45-70 barrels question
« Reply #3 on: November 01, 2011, 06:40:12 PM »
i shoot the bc and the 22'' barrel really don't see much if any difference. same load.
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Offline quickdtoo

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Re: 45-70 barrels question
« Reply #4 on: November 01, 2011, 07:04:09 PM »
I've shot the same load with 350gr jacketed bullets back to back in 22" and 32" with H322 and IMR4198, got about 100-150fps more velocity from the longer barrel.

Tim 
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