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Thread: Ruger 41 mag. built on Wednesday

  1. #1
    Boolit Master knifemaker's Avatar
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    Ruger 41 mag. built on Wednesday

    You have heard the old saying about never buying a car that was built on Monday due to workers having a hangover and never on Friday because the workers are in a hurry to finish and go home for the weekend.

    A while back I bought a new Ruger Blackhawk in .41 magnum with a 4-5/8 inch barrel. That gun must have been built on a Wednesday at the Ruger factory when the employees were feeling their best. I tested it with some handloads using XTP jacketed bullets and it proved to be very accurate. I ordered a mold from Accurate Molds that cast a 220 grain semi wadcutter Keith style.

    I decided to check the cylinder throats and barrel groove dia. to see if I needed to send it off to DougGuy for opening the throats if they were too tight or out of round. I used soft lead fishing sinkers to slug the throats and found 2 throats at .411 and four throats at .4115 and I did four checks on each slug and they were perfect all away around the slug.

    The barrel miked at .409 and no tight spots at the frame-barrel junction. That was not all. The trigger on this revolver was very light from the factory with no creep and smooth as glass. Pulled my trigger gage out and tested the trigger pull 5 times. All five times it broke at a consistant one pound and 8 ounces.

    Makes you wish that they would build all the guns like this.

  2. #2
    Boolit Master
    lefty o's Avatar
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    it does, because they are capable of it. sadly it doesnt happen all the time.

  3. #3
    Boolit Master

    DougGuy's Avatar
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    Quote Originally Posted by knifemaker View Post
    I used soft lead fishing sinkers to slug the throats and found 2 throats at .411 and four throats at .4115 and I did four checks on each slug and they were perfect all away around the slug.
    That cylinder was likely gang reamed on the Hitachi machinery, it has 3 cutters which Ruger replaces when they get too worn to use, so as each reamer wears it cuts smaller and smaller throats. Your cylinder shows the typical 3 pairs of throats, one of the reamers was worn more than the other two. I would hone them to all match since the two smaller throats cause pressure variations which make the gun recoil differently from shot to shot, and usually will shoot to a different point of impact than the other larger throats.
    Got a .22 .30 .32 .357 .38 .40 .41 .44 .45 .480 or .500 S&W cylinder that needs throat reaming? 9mm, 10mm/40S&W, 45 ACP pistol barrel that won't "plunk" your handloads? Shoot me a PM! Also on Facebook: https://www.facebook.com/Cylinderhone-756429174391912/

  4. #4
    Boolit Buddy
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    ...for a .0005 difference I would not touch a thing.

  5. #5
    Boolit Master

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    Quote Originally Posted by RJM52 View Post
    ...for a .0005 difference I would not touch a thing.
    And if the OP sizes to .411" which is PROPER for his throats, and the loaded ammo sits on the shelf a few months and grows .0003" or more which is almost assured if there is much antimony in the mix, rounds won't then chamber in the .411" throats, but will chamber in the others.

    When I size throats .0005" to .0008" above boolit diameter, THIS is why. It just works.
    Got a .22 .30 .32 .357 .38 .40 .41 .44 .45 .480 or .500 S&W cylinder that needs throat reaming? 9mm, 10mm/40S&W, 45 ACP pistol barrel that won't "plunk" your handloads? Shoot me a PM! Also on Facebook: https://www.facebook.com/Cylinderhone-756429174391912/

  6. #6
    Boolit Master Guesser's Avatar
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    I bought a "used" NMBH in 2009, it was in the original plastic box with OEM grips and all the product brochures. The tag stated that it had been worked over by a smith and then refinished with the Robar Rogard black finish, thru pins had been left in the white. It looked really good with the checkered Hogue Pau Fero grips. I got it out the door for 350.00$ I already had several 41 magnums, Smith, Taurus T/C. When I got it home I tried it out. WOW, What a shooter. I did what you did in slugging and measuring. It was perfect. .409 bore, .411 throats, and my cast were sized .410. It worked and still does. I had it a year and was cleaning it when a small pencil magnet laying on the bench next to the butt of the gun drew the magnet to it. HUH??? I checked and the gun had a steel grip frame. This has become my favorite 41 Magnum. I wish you the same fabulous luck with yours. I'm convinced that the shop where I got mine really didn't know what they had. $350.00 and it had more aftermarket items on it than that.

  7. #7
    Boolit Master
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    there was a time when the gun in final testing if it was just right would get stamped one of a thousand. I would like to have one of those 73's now.

  8. #8
    Boolit Grand Master Texas by God's Avatar
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    My all time favorite magnum handgun cartridge and revolver. I've owned 2 old models and 2 new models and all were great. Currently looking for #5!

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  9. #9
    Boolit Master
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    At one time I owned a 4-5/8" Ruger Blackhawk and 4-1/4" FA Model 97, both in 41 Rem Mag. The Ruger was distinctly more accurate than the FA. I still own the Ruger, and shoot it often.

  10. #10
    Boolit Master
    Lefty SRH's Avatar
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    Hahaha, while the OP got a wednesday gun, I got a monday/friday gun, in 41mag aswell.
    This gun hasnt shot a group less than 3” yet. The front sight is too short so it shoots high. The front sight is also installed crooked in the base or the blade is bent (the barrel is clocked correctly).
    After the first range session there was a burr raised up on 5/6 bolt notches.
    Not sure what to do with this gun.
    Ruger did get the cylinder throats right though, for what its worth....

    Glad you got a good one Knifemaker
    "In GOD We Trust"

  11. #11
    Boolit Master

    LUCKYDAWG13's Avatar
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    Quote Originally Posted by Lefty SRH View Post
    Hahaha, while the OP got a wednesday gun, I got a monday/friday gun, in 41mag aswell.
    This gun hasnt shot a group less than 3 yet. The front sight is too short so it shoots high. The front sight is also installed crooked in the base or the blade is bent (the barrel is clocked correctly).
    After the first range session there was a burr raised up on 5/6 bolt notches.
    Not sure what to do with this gun.
    Ruger did get the cylinder throats right though, for what its worth....

    Glad you got a good one Knifemaker
    I had a 44 SBH just like that front sight was put on crooked sent it back they put a new barrel on it and re blued it
    kids that hunt and fish dont mug old ladies

  12. #12
    Boolit Master

    nicholst55's Avatar
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    Quote Originally Posted by Lefty SRH View Post
    Hahaha, while the OP got a wednesday gun, I got a monday/friday gun, in 41mag aswell.
    This gun hasnt shot a group less than 3” yet. The front sight is too short so it shoots high. The front sight is also installed crooked in the base or the blade is bent (the barrel is clocked correctly).
    After the first range session there was a burr raised up on 5/6 bolt notches.
    Not sure what to do with this gun.
    Ruger did get the cylinder throats right though, for what its worth....

    Glad you got a good one Knifemaker
    Yeah, think I'd send that one back to Ruger. I seem to always buy the guns built either on Monday or Friday, myself. Glad the OP got a good one as well.
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BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
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