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Old 04-20-2012, 11:55 AM
32-40win 32-40win is offline
 
Join Date: Oct 2010
Location: Near Drumheller
Posts: 6,733
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Interesting, I was looking for that Pedersoli document last nite, couldn't find it.
I was thinking something around 30,000 was the limit area.
And yet the Remington actions that were chambered for the 7x57 ran in the 45,000 range. The descriptions I remember of them, was they would develop the excess headspace and if it wasn't caught it would blow up. Most people were limiting the 45-70 loads to Trapdoor loads in them as I remember.
If I remember rightly, Wholesale had or has both of those books. The Roberts/Waters book I believe is still avail from Wolfe Publishing.
The B78 action is apparently a pain to take apart to clean, the 1885 Miroku action is no big deal to clean. It and the #1 action are chambered for cartridges that run 60,000 psi+, so there are no strength issues with either one.
CPA will chamber the 44-1/2 for 225 win, so it is strong enough for most needs, he will build up to 45-110 on his actions also.
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