A 10mm magnum Match champ. **RANGE UPDATE**

[Erocksmash]

Well not yet.... ill punch it out this weekend

Let's try this again.

First time I did it it was in a 3inch (silly yes) so this one popped up and I changed the tune a bit, figured the extra inch may help lol.

Kinda awesome as I bought the gun with a "used" title but arrived new. She hasent seen a round yet I count it as a little win...

Well why not go 41mag some say? I never really looked into 41 mag and the options available for it, plus I'm set to load .40 and 10mm.

Anyway figured ide share and drum up some 10mag conversations...

Erik

 

[VictorLouis]

Enjoy the heck out of one in .357.

 

[Echo40]

I'm confused, did you have that Ruger GP100 modified to chamber the 10mm Magnum cartridge or is it merely a standard model chambered in 10mm Auto are you merely referring to it as a Magnum?

No disrespect towards 10mm Auto, as it definitely falls within the range of what a Magnum cartridge would offer, but there actually is a "10mm Magnum" cartridge as well, but I don't blame you if you didn't know that because it is an obscure cartridge which is seldom discussed.

 

[Erocksmash]

I will be modifying it tonight and threw the weekend....

The photo below goes .40, 10mm, 10mm magnum

 

[tlawler]

I'm confused, did you have that Ruger GP100 modified to chamber the 10mm Magnum cartridge or is it merely a standard model chambered in 10mm Auto are you merely referring to it as a Magnum?

No disrespect towards 10mm Auto, as it definitely falls within the range of what a Magnum cartridge would offer, but there actually is a "10mm Magnum" cartridge as well, but I don't blame you if you didn't know that because it is an obscure cartridge which is seldom discussed.

Lol…it ain’t Erocksmash’s first rodeo

 

[colt_saa]

I'm confused, did you have that Ruger GP100 modified to chamber the 10mm Magnum cartridge or is it merely a standard model chambered in 10mm Auto are you merely referring to it as a Magnum?

No disrespect towards 10mm Auto, as it definitely falls within the range of what a Magnum cartridge would offer, but there actually is a "10mm Magnum" cartridge as well, but I don't blame you if you didn't know that because it is an obscure cartridge which is seldom discussed.

10MM Auto and 10MM Magnum are different cartridges

Many of us with revolvers or T/C Contenders originally chambered for the 10MM Auto cartridge have lengthened the chambers to accept the 10MM Magnum cartridge.

Depending on projectile, the velocity gain is 200 - 400 FPS

I have done 4 revolvers and a T/C so far

 

[Erocksmash]

A very crude set up but I take my time and check every so often she should be finished up by Sunday

 

[Erocksmash]

That went a wee faster than the last time, I wasn't as nervous this time around I guess...

Took chambers to 1.155...

I will probably shoot her tomorrow as I only have 4 10mags leftover from the last time, so time to make more...

Yes I punched the other 2 chambers lol...

 

[BLUEDOT37]

Took chambers to 1.155...

In looking at picture #2 in post #8 it appears as though a couple of the cases in the moonclip are sitting high, i.e., the rim of the brass is not touching the moonclip as there's a gap between them, possibly due to your ream to depth??

For my "ream to depth" I decided on 1.163".

As my factory S&W 610's 10mm Auto chambers measured .900" from the chamber ledge to the face of the cylinder, and the 10MAG's max case length is .263" longer than the 10Auto (.992" -vs- 1.255"), so 1.163" sounded right.

If you want to be able to shoot the 10MAGs without moonclips casually (which I like to do), this "ream to depth" is important.

If you're always going to use moonclips any length longer will work.

A shorter length means you'll have less shell head clearance.

10MAG case length ranges from 1.245" to 1.255", affecting shell head clearance w/o moonclips.

A mid-length (1.250") 10MAG case should extend .087" above the cylinder face & give ~.017" shell head clearance.

Dave Manson said he could make some Go-No Go gages using his specs (Go=1.250" & No Go= 1.262") but they are pricey & he said it'd be several weeks before he could complete them.

I made my own using 41 Magnum brass sized to 10mm dia. & trimmed down in length. (You need a longer than normal 10MAG case to make these gages so the 41MAG's longer .035" length filled the bill.)

I ended going with 1.257" & 1.271" lengths.

I've got over 1000 handloads thru my converted 4" bbl. 610-3 & enjoy the heck out of shooting it.

Hopefully you'll enjoy your 10MAG too.

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Loaded with Zero 165gr JHP bullets
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Before reaming to 10MAG
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10MAG loads
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[SuperMan]

Was wondering with top end loads what one can expect to get out of a 3-4" 10mm Magnum vs. a standard full load 10mm.

Also is there much bullet pull when using top end loads. I guess since these headpace on the clip instead of the case mouth one can clip just like a standard rimmed revolver round. And as to clips, can one still use the easy to load factory clips or have to go to the Ranch or TK ThickClips? My 10mm MC will not run .40 S&W with the OEM clips as the headspace is too loose but runs 100% with the ThickClips.

Have had a 10mm MC since the second week they were announced and find with full loads all I want recoil wise in a mid-frame size gun like the MC. I also would not want to loose the ability to use the easy to load OEM clips or loose 10mm rounds when I want to.

This would have been the ideal LE revolver back in the day, exactly what Keith/Jordan/Skelton wanted when they ended up with the .41 Magnum.

Bob

 

[Erocksmash]

I appreciate the info Bluedot... I check the ruger again and I also would like to run 10 mag with out moon clips, if I go any deeper I'll need the thick clips to run the gun properly....

 

[tlawler]

Quoting Bluedot:
“I made my own using 41 Magnum brass sized to 10mm dia. & trimmed down in length. (You need a longer than normal 10MAG case to make these gages so the 41MAG's longer .035" length filled the bill.)”

Would it be possible to make 10mm AR and 10mm mag AR brass this way?

 

[Mike SC Hunter]

Pass. I'll stick with my 10mm auto's.

 

[CH4]

Interesting project. Perfect gun for the job.

 

[BLUEDOT37]

Also is there much bullet pull when using top end loads.

I've never noticed having an issue with jump crimp shooting either 10AUTO or 10MAG in my 4" M610 with full loads.

It weights 42oz unloaded. Don't know what the Ruger weighs.

I shoot mine largely without moonclips but I don't see where using them would make a difference in that regard.

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[BLUEDOT37]

10AR brass

Would it be possible to make 10mm AR and 10mm mag AR brass this way?

I'll give that a qualified Yes.

As mentioned I did use them as 10MAG check gages but prior to that, just for the heck of it, I trimmed & resized a handfull of 41 Mag cases to 10mm Auto length & shot the 10AR cases with full loads in my M610 (when it was still a 10AUTO).

They still have to headspace on the case mouth & chamber shoulder/ledge, not the rim because it's not thick enough like a true AutoRim case would have/need.

If you cut the case length shorter, so the rim is against the cylinder face, you'll have too much shell head clearance & have FTF/misfires.

You still need to use a taper crimp on the seated bullet, of course.

The extractor easily grabs the rim for ejection but because the 10AR is the same length as a 10AUTO, but minus the double thick rim, part of the case is exposed between the rim & cylinder face. Call it unsupported.

I worked up to my normal max 10AUTO load (165gr JHP with Power Pistol @ 10.0grs) & I had no issues with the brass in the 10AR case.

It's really a small amount exposed but other than just having a few around to say I have them I'm not planning on cutting up my 41MAG brass to do more.

I've asked Starline several times if they'd consider making actual 10AR brass & they've away declined.

Maybe if more interested people ask them they might change their mind?

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[SuperMan]

Thanks for all the details BLUEDOT37...Bob

 

[Golddollar]

.[/quote

Cue up Johnny Cash.

[ame]https://www.youtube.com/watch?v=5WyLhwYFgmk[/ame]

 

[CALREB]

You guys are a bunch of mad scientists. But I have goggles, ear protection and blast helmets so your welcome at my house anytime.

 

[keithhagan]

Did the extra inch end up making the difference?