41 Magnum - MP Mold

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  • Last Post 11 May 2025
Aaron posted this 08 May 2025

Finally loaded up some of these MP mold 41 caliber bullets. They are cast in Lyman #2 alloy and drop from the mold at .4145" which is a tad on the large size. I ordered a custom .411" sizing die since Lyman, Lee, and RCBS offer nothing but a .410 die. Sized these up and lubed them with White's 50/50 lube and shoved them out of the tube with 16.0gr of Heavy Pistol powder.

Brother these are warm. The Ruger NMBH beat me up. I didn't wear any gloves to test the loads. I will need to get these over the chronograph at the first opportunity.

Mold casts nice bullets!

 

With rifle in hand, I confidently go forth into the darkness.

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linoww posted this 08 May 2025

gloves are for sissies....

"if it was easy we'd let women do it" don't tell my wife I said that!

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Aaron posted this 08 May 2025

Well Dang.

With rifle in hand, I confidently go forth into the darkness.

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Boschloper posted this 09 May 2025

I have Pachmayr grips on all of my heavy recoiling Blackhawks. I like them better than gloves.  Good looking bullets. 

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MP1886 posted this 09 May 2025

Well Dang.

 

I agree with you Aaron on the gloves.  Gloves are for intelligent people. 

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linoww posted this 09 May 2025

I fall into the non intelligent for sure!

I can't shoot the big boomer handguns like Aaron does  glove or not! im.a complete recoil whimp with handguns.

"if it was easy we'd let women do it" don't tell my wife I said that!

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linoww posted this 09 May 2025

Does that penta hp release easy from the bullet?

"if it was easy we'd let women do it" don't tell my wife I said that!

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Aaron posted this 09 May 2025

I have Pachmayr grips on all of my heavy recoiling Blackhawks. I like them better than gloves.

I tried that decades ago and learned (for me) that smooth grips allow the gun to rotate in the palm like a clutch plate. I find that to be true even on the 454 Casull. I wear the gloves to absorb the linear recoil of the trigger guard and softening the blows to my knuckles and support hand fingers behind the trigger guard.

On my T/C contenders, I DO have Pachmayr grips on all of the hard recoiling frames coupled with similar barrels like the 45-70, 411-JDJ, 375-JDJ, and so forth. The recoil movement of the T/C is more linear and directed into the hand towards the wrist - directly rearward.

I read an article about hard recoiling revolvers many years ago where the author advocated for smooth wood grips on hard recoiling revolvers of the SAA variety in shape. Checkered wood grips will eat you alive of course so glove up with those if you have them.

So with smooth wood grips, grip pressure is critical. Too much grip pressure and the gun will beat your hand and wrist to death. Too little pressure and you will have a barrel smack you between the eyes as the gun is ripped from your grasp. Just right with the pressure and the grip will "slip" through you grasp slightly, allowing the gun to recoil and the recoil energy to dissipate within your palm/hand. It works well for me BUT one needs to be familiar with hard kicking revolvers.

I admit that at my age now, I am less tolerant of the real hard kicking revolvers and tend to download them into more acceptable recoil levels where shooting them without the adrenaline rush is much easier and less abusive to my old-man wrists. Jeez.....I tried to open a jar of olives last night and.....

 

With rifle in hand, I confidently go forth into the darkness.

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Aaron posted this 09 May 2025

Does that penta hp release easy from the bullet?

Surprisingly,,,,yes it does. Mold and alloy temperature are important however.

With rifle in hand, I confidently go forth into the darkness.

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linoww posted this 09 May 2025

I'm probably ready for surgery on my right hand to remove an arthritic bone  in my thumb joint. I had the left one done a couple of years ago and though the pain is gone I just don't have the strength so i've been putting off doing the right hand but the pain is getting too much and i'm sick of steroid shots.

Basically they remove the bone and replace it with waded up cartilage.

"if it was easy we'd let women do it" don't tell my wife I said that!

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sandwman posted this 11 May 2025

I am going to stay with the steroid injections as long as possible. My thumbs began to really hurt about two years before I stopped gunsmithing, The injections helped me get through that period until I could retire fulltime and just do a little on the side. I have other surgeries needed and if the injections work, that just keeps me from having one more. 

Hell, when you get old, surgeries are the last thing you want unless absolutely necessary

I use several of the HP MP molds and they work like a dream. I just can't say enough good things about them. 

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linoww posted this 11 May 2025

the one I had surgery on got so bad I couldn't close a mold and the shot relief only lasted a month.I am not a fan of surgery, but at least now I can cast bullets so it was worth it.

"if it was easy we'd let women do it" don't tell my wife I said that!

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sandwman posted this 11 May 2025

I have the injections every three months with no ill effect. Go see another hand doctor. 

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