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Thread: .41 Magnum / 41 Special Load Data Center

  1. #81
    Boolit Master ohland's Avatar
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    Question Lyman 310 dies in .41 Rem Mag???

    I am sure Lyman had 310 dies that were for the 41 Rem Mag, but what was the adapter ring and the other parts for it?

    Well, the .401 WSL is close to the .41 Mag (closer to the .414!)

    Small 310 Handle
    #16 adapter die - .401 is rimless, will the 41 Mag rim make a difference?
    Large Decapping Rod
    #2 Priming Chamber
    #147 Muzzle Resizer
    Medium expanding chamber
    .412 expanding plug
    426 seating screw
    410426 is the standard Lyman boolit (RN)
    Last edited by ohland; 06-12-2015 at 08:29 PM.
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  2. #82
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    How about the one for the .30-30...as I recall an early .41 article from Dean Grenell, he had to make some .41 brass from 30-30...Bob

  3. #83
    Boolit Master ohland's Avatar
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    Exclamation Any other cartridges use same shellholder as .41 Remington magnum???

    Folks, it looks at this point that the .41 mag has it's own special shellholder size. My efforts to find a similar shellholder (Lee, Lyman, RCBS, Redding, Hornady) seem to fail.

    I am tryng to cobble together a 310 Tool die set by using the .401 WSL as a start point, but the WSL uses a rimless case, while the .41 has a rimmed case. Tried to find a similar shellholder, then see what the matching priming adapter would be...

    Drawing a blank. Lyman #30 has only one cartridge listed, the .41 Mag...
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  4. #84
    Boolit Master ohland's Avatar
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    Quote Originally Posted by RJM52 View Post
    How about the one for the .30-30...as I recall an early .41 article from Dean Grenell, he had to make some .41 brass from 30-30...Bob
    Let me check SAAMI.

    30-30 .063 rim, .506 dia, .420 head
    41 mag, .058 rim, .492 dis, .435 head

    Possible...

    Hmm, looking at COTW, our old standby, 303 Savage .063 rim, .500 head, and .433 head.

    Like smacking my head and saying "I could have had a V8! Though Snappy Tom is a better tomato juice drink...

    RCBS #30 does 30 Rem AR and .41 Rem Mag...
    Last edited by ohland; 06-12-2015 at 10:44 PM.
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  5. #85
    Boolit Master Boogieman's Avatar
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    40+ years ago when I got my 41 Ruger BH I couldn't find a shell holder. I opened out a Lyman #6 ,30-30, to take the 41mag. case, still using it. The 41mag. is .435 " ahead of the rim while the 30-30 is .420" A little work with a file or die grinder will make things work.
    The 3 people a man must be able to trust completely are his gunsmith his doctor & his preacher ..,his gunsmith for his short term health ,his doctor for long term health ,and his preacher incase one of the others mess up.

  6. #86
    Boolit Master ohland's Avatar
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    Quote Originally Posted by Boogieman View Post
    40+ years ago when I got my 41 Ruger BH I couldn't find a shell holder. I opened out a Lyman #6 ,30-30, to take the 41mag. case, still using it. The 41mag. is .435 " ahead of the rim while the 30-30 is .420" A little work with a file or die grinder will make things work.
    The .303 Savage is the parent case for the .414 SuperMag (dow!), which is a lengthened 41 Mag.

    .303 Savage:
    Large handle
    #5 adapter die
    Large decapping rod
    #7 priming chamber
    Medium expanding chamber
    Steal a .412 expander plug

    COTW:
    41 mag, .058 rim, .492 dia, .435 head
    303 Sav, .063 rim, .500 dia, .433 head
    30-30 .063 rim, .506 dia, .420 head
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  7. #87
    Boolit Bub
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    An original set stamped 41 S&W on the box top with 41 Mag handwritten on the end.
    #16 adapter
    #30 priming chamber
    .410 expander
    #421 SWC seating stem, die is marked 41 MAG DA
    Decapper/sizer die is marked 41 MAG CMR

    KO

  8. #88
    Boolit Master ohland's Avatar
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    Quote Originally Posted by ko41 View Post
    An original set stamped 41 S&W on the box top KO
    I keep forgetting it was called the 41 S&W when it came out...

    Why did Lyman feel the need to come out with the #30 shell holder, when the .303 Savage case is such a (very) close match?

    #16 adapter die, the .401 WSL uses that, I can agree with that.
    #30 priming chamber... what makes the 41 S&W so different that it cannot use the #7 from the .303 Savage?
    .410 expander, yep.
    421 seating stem, must be the original SWC boolit. I need to look at the available Lyman 41 calibre moulds...

    I also noted that the 310 Quick Ref I have is incomplete.

    http://ps-2.kev009.com/ohlandl/Cast_...erence_-_Rifle
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  9. #89
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    IMR used to show loads for it in a yearly booklet back in the seventys, maybe someone might have a copy.
    Quote Originally Posted by ncpapaul View Post
    Does anyone have any .41 Magnum loads using PB powder? I have a large canister of PB that is seeming to last forever. I use 7 grains in .45 Colt behind a 250 grain cast semiwad cutter. That would be in a Ruger Vaquero. It goes 700-800 fps. Now I want to use some PB in a 3 screw Blackhawk .41 Magnum. I cast 210 grain LEE bullets. I can't find any PB load data for .41 Magnum. If I use my powder drop already set for 7 grains is this a good start point for the .41? I wanted a bit higher than 700-800 fps. Thanks, Paul

  10. #90
    Boolit Master ohland's Avatar
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    Hug my knees I'm so keyed up (41 mag Contender rifle barrel ships today!)

    Well, one long journey stops and the next one begins.

    Anticipation, it's makin' me wait! A bit over three and a half months... Part was probably my fault, dunno.

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  11. #91
    Boolit Master ohland's Avatar
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    How heavy is heavy? (300+ grains in .41 Mag Contender)

    After reading stuff from Paco and Martin, I see the 41 has taken 300 grainers...

    Using a Contender rifle barrel, not exceeding 37k psi, aiming for 1,200 or so fps, where is the edge of sanity?

    Smokeless seems to be the contender here.
    Last edited by ohland; 06-17-2015 at 11:32 AM.
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  12. #92
    Boolit Master ohland's Avatar
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    Smile MGM 23" 41 Mag barrel came today... (1-14 twist!)

    I'd say things that some here would not think were humanly possible. Such metalwork to make you cry a tear of joy, even if you were a terminator.

    The finish is more black than anything. Smooth as my Brittany's lips. Lug underneath looks stainless, as it is bright, no blue on it. Marked on the lug is 1-14.... My first quick peeks on the net is that should be dee-vine for 250 plus grain boolits.

    UPDATE: "How is your coated finish done? We use a product called KG Gun Coat. It’s a teflon based coating that sprays on extremely thin. We prep the barrel first by sand blasting it. Next, we pre-heat the barrel to remove all the moisture from the surface. After spraying the coating on, we cook the barrel at 325 degrees for an hour to cure it."

    The old retrobate wants me to mount it right now, but I have no plain base boolits yet. Too rainy to cast up some 41-260-FN right now. I do have some SAECO 220s cast up, but no GCs, and lubing will be messy, but not fun.

    Nice recessed crown. MGM sends a few pages, some regrettably are lawyer-speak saying don't blow up your gun, then there is a break-in proceedure which would be too expensive for XTPs, and an accuracy gaurranty which is not the norm for some manufacturers... BUT they are quite clear that if you can't make it pop and send it back, they will see what they can do, and if it shoots for them, they will send it back with the targets and loads, and charge you $40.

    All in all, not a bad deal.

    Last edited by ohland; 06-23-2015 at 06:48 PM.
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  13. #93
    Boolit Master ohland's Avatar
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    Post Casting report on the RCBS 41-260-FN (yes! .410 diameter!)

    After some trepidation, I managed to do some casting today. It appears that a .375 and .41 can be paired off, but a .45 and a .41, not so much. Further, the attempt for a three mould cadence is not workable...

    Anyways, once I got to just the .41 and .45, the boolits started to drop from the 41-260-FN pretty well, still a little diddling with the sprue plate tension.

    But the important thing is that it the RCBS 41-260-FN air drops 10 BHN alloy to a .410 diameter (woo-hoo!) and a .865 length.

    The 45-300-FN was troublesome, but I think it is more sprue plate than anything. Probably could cast with it alone

    Attachment 142458

    Attachment 142459

    Still some rounded edges on some. Sprue plate...
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  14. #94
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    Quote Originally Posted by ohland View Post
    After reading stuff from Paco and Martin, I see the 41 has taken 300 grainers...

    Using a Contender rifle barrel, not exceeding 37k psi, aiming for 1,200 or so fps, where is the edge of sanity?

    Smokeless seems to be the contender here.

    Using 19.0 grains of H110 with a 300 grain boolit from a Mountain Mold I am getting 1260 from a 6" Freedom Arms 654. I have tried several different 300s and all have shot very well. I have not shot any from my 16.5" Contender Carbine however.

    Using H110, fill the case till the base of the boolit is in contact with the powder. Use a Magnum primer... This always gets the highest velocity and lowest SD. Have never gotten any indication of high pressure and even six in a S&W smoothly extract...

    Bob

  15. #95
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    Quote Originally Posted by ohland View Post
    I'd say things that some here would not think were humanly possible. Such metalwork to make you cry a tear of joy, even if you were a terminator.

    The finish is more black than anything. Smooth as my Brittany's lips. Lug underneath looks stainless, as it is bright, no blue on it. Marked on the lug is 1-14.... My first quick peeks on the net is that should be dee-vine for 250 plus grain boolits.

    The old retrobate wants me to mount it right now, but I have no plain base boolits yet. Too rainy to cast up some 41-260-FN right now. I do have some SAECO 220s cast up, but no GCs, and lubing will be messy, but not fun.

    Nice recessed crown. MGM sends a few pages, some regrettably are lawyer-speak saying don't blow up your gun, then there is a break-in proceedure which would be too expensive for XTPs, and an accuracy gaurranty which is not the norm for some manufacturers... BUT they are quite clear that if you can't make it pop and send it back, they will see what they can do, and if it shoots for them, they will send it back with the targets and loads, and charge you $40.

    All in all, not a bad deal.



    ...sorry...with no pics we all say that MGM never made a barrel....

  16. #96
    Boolit Master ohland's Avatar
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    Exclamation Berry's 41 caliber, 210 grain plated bullets arrived

    Brown truck of unrequited passion stopped for a few minutes, and left a small brown box on my porch.

    Attachment 142658

    Notice the small notice "Max velocity 1245 fps" believe, obey, shoot!

    Hoist the Jolly Roger, we have gleaming plunder! Arrgh...
    Attachment 142659
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  17. #97
    Boolit Master
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    Funny colored boolits ???
    Got my NOE 238a mould couple days ago, now time to cast some and find a doggone .411 sizer!
    “You don’t practice until you get it right. You practice until you can’t get it wrong.” Jason Elam, All-Pro kicker, Denver Broncos

  18. #98
    Boolit Master ohland's Avatar
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    Quote Originally Posted by rking22 View Post
    Funny colored boolits ???
    Got my NOE 238a mould couple days ago, now time to cast some and find a doggone .411 sizer!
    Them bullits have a high percentage of copper, and when I water dumped them, the copper percipitated out of suspension and coaleced on the surface. Happens every time. Sort of like cocoa butter working it's way to the surface of a chocolate bar, I believe it is called "bloom".

    The first liar doesn't have a chance...


    .411 is not a normal Lyman or RCBS H&I size. Saeco might have em for their threaded die... I'm sure BACO has em, but you can get a .411 made for less (on CB), I had a .322 made.
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  19. #99
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    a few more loads loads -- 11 gr of 800x 210 RCBS 1412 6''DWA
    11 gr 800x 220 Lyman 410459 1347 6''DWA
    10.5 gr 800x 1196 290 grain SSK 6'' DWA
    BTW it is Blue Dot that gives cold weather problems never heard of it with 800x
    10'' TC 11 gr 800x 210 RCBS 1459

  20. #100
    Boolit Master ohland's Avatar
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    Post First range day with MGM .41 Remington Magnum Contender

    Got out to the range with the .41 barrel.

    Attachment 143168

    Berry's Bullets .410 dia 210 grain plated bullet. Load is Trail Boss. No rounds blew up.

    Attachment 143169

    As part of the break-in, the barrel was cleaned after every shot.

    Attachment 143170

    The hired hand gets to touch off a few at the hangers.

    This load is pretty quiet, a 22LR has a much sharper crack. Things to do - the stock G2 trigger is everything it's cracked up to be....

    Sized .41 Mag mouth OD: .427
    Fired .41 Mag mouth OD: .431

    Thickness of brass at mouth: .011
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Abbreviations used in Reloading

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
GC Gas Check