45-70 to 45-90
- Thread starter Kroy
- Start date
- Location
- St. Paul AB
Find a gunsmith knowledgable in lever actions. Other than having the chamber run out .300" you may have to alter the action so it can feed the longer round. Whereabouts near the Montana border are you? There might be someone in your area who would know more on either side of the border.
The action length would give you grief. The 90's case is 295 thou longer.
If you just want a .45-90, as opposed to a lever action, Pedersoli makes several Sharps single shots in .45-90. Cheap they ain't though. They start around $1800. Their Remington Rolling Blocks are less pricey. $1200 to $1400ish.
If you just want a .45-90, as opposed to a lever action, Pedersoli makes several Sharps single shots in .45-90. Cheap they ain't though. They start around $1800. Their Remington Rolling Blocks are less pricey. $1200 to $1400ish.
- Location
- St. Paul AB
No. The action is the same, but I don't know if there is some adjustment that would be needed to allow the 2.4" case to feed from the magazine as opposed to a 2.1" case of the .45-70.
fingers284
CGN Ultra frequent flyer
- Location
- Alberta Cowboy Ranges
Try it with a dummy round. If the new action is the same size as an old one then it should work all the way through an action cycle untill it won't chamber all the way. If it hangs up before feeding into the breech then work will have to be done to the action as well as re-chambering.
How comfortable are you, rooting around inside your rifle?
As stated, the cartridge is longer. You will need to have a look at the cartridge stop, to see if it will allow the longer cartridge to feed. It is the part that allows one cartridge to feed from the tube magazine, onto the lifter, and stops the next cartridge from jamming up the works.
Got a dummy 45-90 round?
Try seating it on the lifter, to see if the lifter has enough room. If it fits, try it through the mag.
Load it into the mag, and see if it will cycle through the lifter. It won't chamber. Don't use a live round, eh.
If it won't feed, you may have to do some creative juggling with a piece of wire to feed it back into the mag tube, or you may have to pop the cap and spring off the tube to allow the round to be shook back out the tube.
The chamber is easy.
Another source of info for you, may be the parts lists and diagrams for the originals. See if there are any different parts listed as applicable to the different calibers.
Cheers
Trev
As stated, the cartridge is longer. You will need to have a look at the cartridge stop, to see if it will allow the longer cartridge to feed. It is the part that allows one cartridge to feed from the tube magazine, onto the lifter, and stops the next cartridge from jamming up the works.
Got a dummy 45-90 round?
Try seating it on the lifter, to see if the lifter has enough room. If it fits, try it through the mag.
Load it into the mag, and see if it will cycle through the lifter. It won't chamber. Don't use a live round, eh.
If it won't feed, you may have to do some creative juggling with a piece of wire to feed it back into the mag tube, or you may have to pop the cap and spring off the tube to allow the round to be shook back out the tube.
The chamber is easy.
Another source of info for you, may be the parts lists and diagrams for the originals. See if there are any different parts listed as applicable to the different calibers.
Cheers
Trev
- Location
- rocky mountain house
you could make this into a 450 alaskan.thatll maker bellar! the 45-90 would be too long.
David Henry
CGN Regular
- Location
- West of the big road
45-90
The 45-90 cartridge that was chambered for the 1886 was loaded with a shorter and lighter bullet and advertised as such by Winchester back in the day.
You wont get away with 500 gr cast bullets for this combination of rifle and round, I think that it was offered in either 325 or 350 grain specifically for the 1886 chambered in 45-90.
My experience in doing these rechamberings has been pretty strait forward but cycling issues can only be resolved with short bullets, which dose not allways give the best accuracy. It is quite possible that Winchester had a different rate of twist in 1886 rifles than that of the single shot 1885 to overcome bullet stablization problems. Regards David Henry.
The 45-90 cartridge that was chambered for the 1886 was loaded with a shorter and lighter bullet and advertised as such by Winchester back in the day.
You wont get away with 500 gr cast bullets for this combination of rifle and round, I think that it was offered in either 325 or 350 grain specifically for the 1886 chambered in 45-90.
My experience in doing these rechamberings has been pretty strait forward but cycling issues can only be resolved with short bullets, which dose not allways give the best accuracy. It is quite possible that Winchester had a different rate of twist in 1886 rifles than that of the single shot 1885 to overcome bullet stablization problems. Regards David Henry.
David Henry
CGN Regular
- Location
- West of the big road
45-90
I just checked with a reprinted Winchester catalogue from 1899 and it states that loaded ammunition for the 1886 was available in 300gr 350gr and a 405 weight as well.
Recoil from the 45-90 in an 1886 will not be any more noticable than recoil in its present chambering of 45-70 gvt given similar bullet weights. David.
I just checked with a reprinted Winchester catalogue from 1899 and it states that loaded ammunition for the 1886 was available in 300gr 350gr and a 405 weight as well.
Recoil from the 45-90 in an 1886 will not be any more noticable than recoil in its present chambering of 45-70 gvt given similar bullet weights. David.
Additional powder, additional velocity, added reciol. Sorry David but with your theory a 378 Weatherby would have similar recoil to a 375 H+H. Not so.
I shot the 45-70 with 405 gr. and then 45-110 with the same bullets. No comparison. Tooth loosening. Granted the #1 recoils differentlty than a 1886, but more velocity @ bullet exit = more recoil. Mark
I shot the 45-70 with 405 gr. and then 45-110 with the same bullets. No comparison. Tooth loosening. Granted the #1 recoils differentlty than a 1886, but more velocity @ bullet exit = more recoil. Mark
David Henry
CGN Regular
- Location
- West of the big road
45-90
Mark I am in agreeance with your train of thought the 375 H & H is not compareable to the recoil generated from the 378 Wby they are two diferrent cartridges all together. And yes you can stuff a lot more powder in a 45-110 case than you can a 45-70 which will yield more felt recoil.
Its just that my experiences have tought me that there is little difference between 45-70 and 45-90 when you are talking recoil. David.
Mark I am in agreeance with your train of thought the 375 H & H is not compareable to the recoil generated from the 378 Wby they are two diferrent cartridges all together. And yes you can stuff a lot more powder in a 45-110 case than you can a 45-70 which will yield more felt recoil.
Its just that my experiences have tought me that there is little difference between 45-70 and 45-90 when you are talking recoil. David.
