Loading question for Ruger 77/44

[Hasaf]

I am looking at getting a Ruger 77/44 in the near future. I have a question that is a bit specific to the Ruger bolt action carbine.

I was looking at this thread, here at THR, and I noticed something that I didn't know before. In particular, it relates to the different SAAMI specs for 44 mag pistol and 44 mag rifle.

Diameter for Revolver/Pistol is spec'ed at .429" Groove / .417" Bore
Diameter for Rifle is spec'ed at .431" Groove / .424" Bore

2 Seperate PDF's under SAAMI/ANSI Standards at this page:
http://saami.org/specifications_and_information/index.cfm
Page 130 for handgun, and page 197 for rifle...

Here is my question, is the Ruger carbine barrel made to rifle or pistol specs?

 

[buck460XVR]

To rifle. Has nuttin' to do with how you load the cartridge tho, other than diameter of lead bullets(which you have to do when reloading for revolvers too). I shoot the same loads in my 77/44 that I do in my 629s. What's accurate in one works just as well in the other. But I only use jacketed bullets.

 

[mdi]

I have a Puma in 44 Magnum and I found it to be inaccurate and often leaded the barrel when I use my handgun loads (4 other 44 Magnums). I discovered the difference when I slugged the barrel and found the groove diameter to be .432"+ (still in SAAMI tolerance of .431"). I sized my Puma bullets to .433"-.434" and they now work fine. For jacketed bullets of .429" I never had any noticeable problems (but I've fired less than 100 jacketed bullets through any of my 44 Magnums in at least 15 years)...

 

[philbo]

I have and load for the a 77/44 and have always used the same loads for the carbine as I do with my revolvers with good success. One thing I have noticed is that the magazines on the carbine have issue with some of the heavier 280-300 grain bullets I load because the OAL is too long for the magazine to feed correctly when loaded with more than one cartridge... actually had to disassemble a mag to get the cartridge out.