Ruger 45-70 help

[The Old Guy]

I need some help BEFORE I get started on the latest project. I have a Ruger No 1 action that wants to become a 45-70. I would like to use a Green Mountain barrel blank:
.458 Cal. 1:14 twist 27" x 1.20" Round Barrel Blank, 4140 Chrome Moly steel, button rifled, thermo stress relieved, air gaged. .450 bore/ .458 groove.
I've had great luck with their barrels on some Ruger handguns.
Would this barrel be able to stabilize cast boolits in the 500 gr/1200fps velocity range?
Thanks for any help/advice you can offer.
The Old Guy

[Chill Wills]

Short answer. Yes. Twists for the 45-70 are commonly 1-20, 1-18, some 1-17 and 16 twists which I like. The 1-14 twists are found chambered in 458 Winchester mag. I have no reason to think it would be a problem to build a 45-70 Gov with a 1-14 barrel.
I would guess it might like the real heavy bullets and not do as well with the 300gr class bullets but that might not be true either. Give it a try!

[Bullshop]

Sure nuff it will stabalize heavier boolits than you want to shoot.
The thing that I am thinking is with that fast a twist it may not be BP friendly due to fouling issues

[Nobade]

Yep, my 1:18 twist GM barrel stabilizes BACO 545gr. boolits just fine. If it were me I would go slower, just like Bullshop says, probably more accurate with BP and lighter cast boolits.

[Franklin Zeman]

I have a Ruger #3 in 45-70 that might save you a lot of $. Maybe we could work out a trade of some sort.

[oldred]

My Highwall has a 1-18" twist GM barrel and stabilizes 500 grain 458 bullets just fine in the 1200 to 1500 FPS range, actually I think the 1-18" twist is preferred by most people or at least that's the consensus I got when asking this question a couple of years ago.

[Idaho Mule]

CDOC will show up here soon. JW

[johnson1942]

from on old guy to another. please see your private messages

[Bad Ass Wallace]

My Ruger 45/120 has a 1:14 twist barrel, the biggest boolet I've tried is a 630gn Hoch nose pour type

[Crusty Deary Ol'Coot]

Finally made it Mule.

My RUGER #1s - 45/70 has a twist of 1 in 20"

Now, for whatever reason it did not shoot 355gr WFN cast nearly as well as my current 465gr WFN.

Was I pushing the 355 too fast? can't say and the mold is gone. Possibility, I suppose.

Was up as high as 2500fps with it, and hunted with a 2300fps load.

Toooooo much of a good thing. The WFN non-expanding boolit was overly distructive at that velocity.

My 465gr WFN at 1650fps is awesome on deer and elk.

Crusty Deary Ol'Coot

[Idaho Mule]

Crusty, hi there bud. Did you get the new scope dialed in yet? OOPs, no, you been too busy shoveling SNOW!!! JW

[Crusty Deary Ol'Coot]

Morn'in JW

Yep snow. Pushed some yesterday and looks like a repeat this morning.

CDS scope is mounted and the "custom" dial has arrived from Leupold - NICE! - so now only need to wait for April or May or June or -------------, snow currently knee deep to a tall white guy ----- and you thought I couldn't be "P.C."

Not of course refering to any tall bow legged white guys I might know.

Oooooops, slipped off the PC wagon.

Waiting for a post from, "The Old Guy"! Wonder what choice he made.

As short as the barrel is on my #1, I wasn't sure I was going to get a measurement on the rate of twist. Just did on about the third try. From the time I could feel the patch hit the lands, the patch was almost out of the barrel by the time it made one turn.

My oh my how I love that short, compact, light rifle! Total joy to carry in the woods.

And, have I said anything about just how VERY deadly it is on deer an elk?

Crusty Deary Ol'Coot

[George Tucker]

In my Ruger #1 45-70 i use the old Gould 320gr HP, never shot anything with blood in it that didnt die, George.

[lkydvl]

Would you be interested in an original Ruger #1 bbl in 45-70?