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#1
06-29-2009, 06:43 PM
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It depends on when that ruger #1 was made. Mine is from the 1970's and has a nice long throat and I can seat a 500 gr. bullet out far enough to get past 1800 FPS with a cast lead bullet. A serious load that hits hard at both ends. I shoot only my home cast bullets in the 45-70.
Check out a copy of Ken Waters Pet Loads. He shows some stiff loads for use in stronger guns. The only place where I disagre with him is in using those loads in a New model 1895 Marlin. One theykick like hell and two, the lever will snap open at the shot. Almost an automatic ejection systen and I wasn't even close to his loads yet. Paul B. 
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#2
07-28-2009, 10:38 AM
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Critch,
Pay attention to Paul and the #1 issues, he is a #1 kinda guy. I am exactly like Paul when it comes to the Marlin, I own two, it just aint that strong and popping a lever is getting danger close for no legitimate reason. I have a few #1s but none in the big bore range. On the other hand, I do own two Siamese Mauser based 45-70 guns. They are in my way of thinking, superior to just about every other 45-70 chambered configuration when it comes to pressure. The Siamese is a late 98 Mauser built by Arisaka for the Siamese government, chambered for a rimmed cartridge. I also own some real shoulder beaters, like a 458 Lott and a 20-inch carbine in 338 WM. Probably the best thing to talk about in the 45-70 in the Mauser configuration is the fact that you can not get enough powder in it to flatten the primer until you go to a pistol powder like H-4227. Yeh, well, after several hundred test rounds, I got tired of firing a round and it dropping out of the chamber with a round primer so I loaded up a 525gr RCBS cast until I got a flat primer so I satisfied myself that it could be done. Mauser Only: With a 300gr Rem HP you can get 2,600 to 2,700 using R-7 at about 1 inch at 100 With a 300 Rem HP you can get 2,500 fps using 2015BR at .75 inch at 100 Here in the SE I have not seen a need for the bigger bullets in the 45-70. A 300 at 2,600 to 2,700 fps is about all a 150-pound whitetail needs for a clean kill.  The Mauser is my illusion gun... causes a deer to just disappear. Best, Ed
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