1886 Miroku question

[snowwolfe]

Did they use the same action when they built the 1886 45-70's and the 45-90's? If they did, was anything modified so the actions could handle the longer length of the 45-90?

[Clay M]

Did they use the same action when they built the 1886 45-70's and the 45-90's? If they did, was anything modified so the actions could handle the longer length of the 45-90?


The same. .45/90 is great if you are going to shoot black powder,otherwise no advantage and the extra length is actually a disadvantage.

[snowwolfe]

Not planning on going to the 45-90. Just wanted to know if the action could handle it because my smith just ordered a throat reamer so when he recuts the throat I want to be able to run standard length 45-70 brass with the longer 350 grain bullets through it. They measure about 2.65 COL.

But if you think there are any flaws in my thinking appreciate some feed back because this is my first 1886.

[NSB]

I had my gun's throat lengthened to accept all bullets. Ended up adding about .240" to the throat. It still shoots great and will chamber everything. It came out so good, I had them do my Win 1885 in 45-70 also. It didn't have any throat either.

[snowwolfe]

NSB, Thanks for the input:) Sounds like my plan is a good one. Will see how the 1886 turns out and then might have my Henry worked on as well.

[snowwolfe]

Smith just finished working on mine. He cut the throat .200 deeper so it will most likely handle any length bullet I want to run through it. Glad you guys mentioned this rifles short comings to me or I never would of thought to have it done.

[JFE]

I had a Browning 1886 and that would cycle cartridges to around 2.65" ish OAL without altering the action. You can have the action altered to accept longer shells but if you do, reliably cycling shorter shells becomes an issue.

[NSB]

COL isn't just an issue of cycling. Depending on the bullet ogive, it may not chamber. Everything cycled in my 1886, it just wouldn't all chamber.

[snowwolfe]

Like NSB, mine would run them through the action but the dummy rounds that measured 2.65 wouldn't chamber without a lot of resistance, meaning they were running into the rifling. After having the throat cut they are a piece of cake to cycle.
Interesting, I tried running the 2.65 rounds through my Henry and it cycles them perfectly as well.

[KirkD]

I had that problem with the 350 grain Hornady JFP in my '86 SRC made by Miroku, so I started using cast bullets. It is too bad that Hornady didn't keep the same olive on the 350 grain JFP as they had on the 350 grain JSP. My Miroku had no problem chambering the JSP's. It also has no problem chambering 45-70 cartridges with the same O.A.L. as the 45-90.