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Author Topic: 500 S&W converted to 50 cal Smokeless MZ  (Read 1322 times)

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Offline bikerbeans

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500 S&W converted to 50 cal Smokeless MZ
« on: July 02, 2012, 04:39:14 AM »
It's coming! ;D   Already passed the function testing in my "test cell". :o   Range trip planned for this week, will post pics afterwards.  Temporary conversion at this point, will make it permanent if the accuracy is acceptable.  BTW, it is shooting "custom" sabots. ::) ;) 8)   
 
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RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline quickdtoo

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #1 on: July 02, 2012, 07:21:10 AM »
Smokeless MLs are not legal here, but I'm still all ears......er... eyes!!! ;D

Tim
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Offline bikerbeans

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #2 on: July 03, 2012, 04:45:20 AM »
It might work out okay. ::)
 
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RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline quickdtoo

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #3 on: July 03, 2012, 04:48:32 AM »
Precision homemade jacketed ML bullets, what's not to like about that!!!  8)

Tim
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"Always do right, this will gratify some and astonish the rest" -  Mark Twain

Offline bikerbeans

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #4 on: July 03, 2012, 04:55:59 AM »
Quote from: quickdtoo on July 03, 2012, 04:48:32 AM
Precision homemade jacketed ML bullets, what's not to like about that!!!  8)

Tim

Only the best from the Profino Custom Shop. ::)
 
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RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline gendoc

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #5 on: July 03, 2012, 05:54:19 AM »
don't ferget tha
"profino test cell"
too........;-)
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burn ya lil'bit did'nt it. ya ever been snipe hunt'n ?  come on...

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Offline bikerbeans

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #6 on: July 03, 2012, 06:09:04 AM »
Quote from: gendoc on July 03, 2012, 05:54:19 AM
don't ferget tha
"profino test cell"
too........;-)

Momma dun closed down the "Test Cell".  Apparently she heard "hey ya'll watch this" one too many times. ;D
 
BB
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RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline 45-70.gov

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #7 on: July 04, 2012, 12:53:52 PM »
got a picture of the breach plug
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Offline bikerbeans

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Re: 500 S&W converted to 50 cal Smokeless MZ
« Reply #8 on: July 04, 2012, 02:21:26 PM »
Govt.,
 
Not yet, I am using a temp. plug, AKA a primed piece of expanded 500 S&W brass.  Chamber the primed brass and then like any other MZ.   On the the 45-70s I converted to smokeless (and the 444M I gave up on) I shot them with  temporary plugs until I decided they worked well enough for me to make a permanent conversion.  IF/when I decide to make this 500 a permanent MZ I will have a slip fit steel or brass plug turned on a lathe.  This plug will have essentially the same outside dimensions as a fired piece of 500 S&W brass but the wall and case head will be a lot thicker.  One made the plug will be hand fitted and then will be epoxy it in place.  THe Plug will have a reamed 209 pocket that is "o" ringed and a flash hole.  Another option for a breech plug would be to have the chamber bored out and threaded and then use a Savage 10ML plug; more work & more money in my eyes.
 
Oh, before I am tarred and feathered for using glue to install a breech plug I would suggest that folks calculate the breech thrust, the glued surface area of the outside of the plug (would be the same surface area as the brass cartridge ext. wall) and the holding strength of the epoxy.  I did the math and it said it would work on the 45-70s and then I did the testing by shooting 100s of rounds out of two different guns and the slip fit/epoxied plugs haven't moved.  THe first plug was intentionally made with headspace so it doesn't touch the receiver face and it has stayed put.
 
BB
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RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.
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