.414 SuperMag COAL for 210 grn ?

[WARDOG]

SO I picked up a .357 Max and immediately called JRH about a conversion to .414 SuperMag.  I like a little heavier bullet for whitetail hunting.
I have no experience with the Max's or SuperMag's.
My observation is that the tip of the 180 grn Max's bullets rest just .038" below flush with the cylinder face. 
My concern is that with the .414 SM's 210 / 220 grn WFN hardcast bullets are heavier and may pull crimp under recoil tying up the cylinder.
For those shooting the .414's out of the stock length Max cylinder, 1).  Do they pull crimp like the heavier .475 LB's or .500 JRH's?  2).  How much is the 210/220 grn .414's recessed from cylinder face.
For the custom .414 conversions on the Max frames, is the remade cylinder a little longer than the Max's original cylinder to accommodate a little more recess to prevent tying up the cylinder?
Is there room for the .414 rim to countersink into the cylinder for a cleaner look on a six shot cylinder?
Jack said he can budget build it by line boring the existing cylinder.  I am on the fence between budget shooter and doing a full custom and having it hard chromed.
Any input is appreciated.

[potatojudge]

There's plenty of room for the 210 in a factory cylinder without worrying about jumping crimp.

The 414 will push a 210 a bit faster than a 41 mag, but the real performance gains are with heavy bullets. The 265 should fit your factory cylinder, but the 295 won't without deep seating it.

[Lee Martin]

As potatojudge noted, you'll have space. Dimensions:

Ruger Maximum cylinder length = 1.940" (front to back)
.414 SuperMag rim thicknes = 0.060"
Total allowable case length = 2.000"

2.000" - 1.610" = 0.390" max nose length. Since I shoot some long nose .41's (nose = 0.410" to 0.420"), both of my .414s are on custom cylinders which use the whole frame window. Bullet pull hasn't been a problem with a firm crimp. And I've shot up to 290 grs in mine.

-Lee
www.singleactions.com
"Chasing perfection five shots at a time"

[potatojudge]

If you're going the custom cylinder route, a standard 41 mag in a long cylinder on a standard frame can get you most of the way to a 414.

I just measured a Clements 41 and allows an OAL of 1.8 inches but the cylinder is much fatter than factory.

I also measured a Harton 414 using the factory cylinder and as Lee said, OAL of 2 inches.

A Hunter 41 mag measures 1.7 inches.


I'd say pick the bullet/speed you're interested in, measure what the OAL you'd load it to would be, and let that guide you. You can always trim the 414 cases to a length between 41 mag and 414, typically 1.4 inches. Bullet type dictates whether this is worth it, as in are you looking at a bullet with a crimp groove or no? Are you deep seating and crimping over the driving band?

Lots of ways to do this, and IMO none are wrong.

For a 210 grain bullet, I doubt you gain anything in a custom cylinder except the versatility to go with heavier bullets later.

[bigbrowndog]

WarDog, I spoke with Jack about the same thing in my Max, heavier bullets, and whether a 5 shot would be better than a 6. His thought was that since the 414 is not a high pressure round the factory cylinder rebore would be plenty. I am interested in heavier bullets but not as heavy as 290-300gr........240-280 grain will do what I want a 414 for which is basically for game up to elk sized, but provide less recoil than 454’s, 475’s and 500’s. Currently I’m using my 357max for medium game and love it, but I consider it a bit light for elk.

Trapr

[bradshaw]

Apr 15, 2021 11:13:42 GMT -5 Lee Martin said:

As potatojudge noted, you'll have space. Dimensions:

Ruger Maximum cylinder length = 1.940" (front to back)
.414 SuperMag rim thicknes = 0.060"
Total allowable cartirdge length = 2.000"

2.000" - 1.610" = 0.390" max nose length. Since I shoot some long nose .41's (nose = 0.410" to 0.420"), both of my .414s are on custom cylinders which use the whole frame window. Bullet pull hasn't been a problem with a firm crimp. And I've shot up to 290 grs in mine.

-Lee
www.singleactions.com
"Chasing perfection five shots at a time"

*****

Lee.... you said allowable case length = 2.000”.... am sure you meant cartridge length 2-inches.

WARDOG.... Ruger Maximum frame allows for a longer cylinder. If you can’t sleep without a longer nose (bullet), custom cylinder is only option. Itemize your desires to Huntington. The counterbored chamber has its own aesthetic, Aside from looks, its purpose on a HEAVY RECOILING single action is to support the LOADING GATE under recoil----when the revolver is fired with unloaded chamber at 2 o’clock.(The circumference of a counterbored cylinder prevents forward rocking of the loading gate, which prevents strain on the loading gate pivot.) In handgun silhouette, thousands of non-counterbored Super Blackhawk .44 Magnums were fired----first shot in 5-shot string----with the chamber to the right of the hammer EMPTY.
David Bradshaw

[Lee Martin]

David - you're correct. Good catch. I meant maximum cartridge length of 2".

-Lee
www.singleactions.com
"Chasing perfection five shots at a time"

[WARDOG]

Thank you gentlemen. I had the right people with the right information answer my exact questions.
It is off to JRH for the conversion.