Need reloading data for the original 10MM rounds

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Jessie James 58

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Hello; I am looking for reloading data for the original 10MM rounds. The current data I see in my reloading books are for the watered down 10MMs. The Norma rounds were more powerful that what is now factory sold or found in the current reloading manuals.

This may have been covered in past threads I may have missed them, sorry about that.

Dose anybody have any suggestions. I have been reloading for over 45 years and have never had any issues (Knock on wood) . Any time I reload more powerful rounds I use a single stage press and weigh all components.
 
The original Norma load was a 200 gr. bullet at 1,200 fps. Very little of the current data will achieve that velocity, and it's only recommended in fully supported chambers. As for the actual loading data, I don't have it, nor do I post loading data on open forums, since there's too big a possibility of getting it wrong.....

Hope this helps.

Fred
 
I'd suggest that, unless you have the original powder lots that were loaded, you use the current, specified loads supplied either by the powder manufacturer or a reliable reloading manual. This should be a starting point. As you work your way up, checking for pressure signs, exceed the max loading at your own risk.
 
Hodgdon shows some loads in the 36,000+ PSI range.

Thats hot enough for me with used brass.

If you can locate a Speer #13 manual?
It gives 37,500 PSI loads, with a 155 @ 1,320, 180 @ 1,295, and 200 @ 1,216 FPS.

rc
 
Last edited:
RC and Ready (and the other guys) got it - follow those books and even 80% of max and the loads will be very close to the hottest commercial loads from that earlier time. The current commercial loads are very puny.
 
I have the Accurate Arms Powder Manual #1, PM me for the info. I also have Sierra's pre-published data from back in 1989, that is before it went into the next manual. The powders are not the same today and it is only valid lot number found back then.
 
Don't know about the original data but if you want to get 10MM moving, try 800X. Plenty of us have used that in the past to get the 200gr bullets moving fast. Well above published data. Just be safe and watch for pressure signs. Last suggestion, use a supported barrel when doing so.
 
AA#7 is the most accurate 180 grain and can be loaded to 1400 fps, which is at max.
 
AA#7 is the most accurate 180 grain and can be loaded to 1400 fps, which is at max.
Click to expand...

I am going to assume that is a typo. No way #7 is going to produce 1400fps and stay within safe pressure range. Accurate Powders put 180gr Max under 1200fps out of a 5 inch barrel.

Back to the OP. If you want to get the highest velocity you can out of your 10mm and still stay within safe pressure limits then get ya sum Longshot.

Data here.
http://data.hodgdon.com/cartridge_load.asp
 
steve4102 said:
Back to the OP. If you want to get the highest velocity you can out of your 10mm and still stay within safe pressure limits then get ya sum Longshot.

Data here.
http://data.hodgdon.com/cartridge_load.asp
Click to expand...
I was about to suggest Longshot and I agree with the above post. Too bad W571/HS-7 are no longer available because that was the best 10mm powder available. Longshot comes close and is also a good choice for high velocity 40 S&W rounds.
 
I get there with 800x. 200 grns at 1200 FPS is my standard blasting load with my 10mm's. Work it up over a chrono in your gun. If you see pressure signs before 1200, quit! Your gun can't make it. If you get to 1200 with no pressure signs, then yours are like mine and not an issue.

Just keep in mind that is a lot of power and can cause wear in a nicely fitted 10mm 1911 format gun.
 
My 10mm was a S&W 1006 w/adj. sights. With Norma brass, Hornady 200gr XTP's and AA#7 I got 1,200fps and with 180gr 1,375fps or close enough to 1,400fps. Accuracy was good enough that I shot several deer with it. However, accuracy wasn't sufficient for me to get my NRA "Distinguished" badge with it so I sold it and eventually got a S&W PPC-9 "Limited" that was way, way more than accurate enough.
Back to the 10mm.

I shot some of my "1006" loads through a Glock M20. Not a Happy event... blown case heads, damaged gun, and powder burned hands.... Hence, the "new" loading levels for the 10mm....

With the S&W and it's supported barrels, the 10mm is a real power-house closing in on the .41mag for performance. However, in a non-supported head barrel, you're just as well off with a .40S&W and either 800X or LongShot... only perhaps 50-80fps difference in top loadings.....
FWIW; a 155gr XTP from the .40s&w at 1,200fps has done just about as well as the 10mm w/180gr bullet for me, hence I've never been re-bitten by the 10mm "bug".
 
Agreed. Once I figured out the limits, I keep my nuclear level loads in my 610 over my 1911's. 200@1200 belongs in a 610 or a G20 with an aftermarket barrel. I keep my 10mm for my 1911's more at "Hornady" reload manual levels.
 
Good info. I've been meaning to work up some 10mm loads for my Blackhawk 10mm / .38-40 convertable. The 10mm cylinder walls are pretty massive.
 
Jessie James 58 said:
Hello; I am looking for reloading data for the original 10MM rounds. The current data I see in my reloading books are for the watered down 10MMs. The Norma rounds were more powerful that what is now factory sold or found in the current reloading manuals.

This may have been covered in past threads I may have missed them, sorry about that.

Dose anybody have any suggestions. I have been reloading for over 45 years and have never had any issues (Knock on wood) . Any time I reload more powerful rounds I use a single stage press and weigh all components.
Click to expand...
I HAVE A LOT OF THE ORIGINAL NORMA LOADS [ BOTH 170 and 200gr ] and when I pressure checked 'em in the lab the pressure was higher than current proof loads. IS THAT WHAT YOU ARE LOOKING FOR ??!!
When the boys from NORMA/AMOTFORS were here I asked what in the world were they thinking loading the 10MM NORMA [it's correct name ] to such levels ??
" Seemed like a good idea at the time " was sorta where we ended up.
SO......be my guest.
And so it goes...
 
That's good information, Wil. Do you happen to remember what pressure they attained with the original loads? Those early Norma loads were pretty scary out of a Delta Elite.

Fred
 
Try Longshot, No.7, and No.9

http://data.hodgdon.com/main_menu.asp

200 GR. HDY FMJ Hodgdon Longshot .400" 1.260" 7.0 1034 23,900 PSI 8.2 1172 35,000 PSI

180 GR. SIE JHC Hodgdon Longshot .400" 1.260" 8.5 1221 31,000 PSI 9.5 1287 34,600 PSI

http://www.accuratepowder.com/wp-content/uploads/2011/01/accurate_load_data_3.5.pdf


No.7 180 HDY XTP 9.6 1,041 10.7 1,183 35,300 1.250
No.7 180 RAN HP 9.9 1,051 11.0 1,195 36,200 1.260
No.7 190 SIE FPJ 10.1 1,054 11.2 1,198 36,000 1.250
No.7 200 HDY XTP 8.8 960 9.8 1,091 36,500 1.250

No.9 180 HDY XTP 12.2 1,093 13.5 1,242 34,100 1.250
No.9 180 RAN HP 12.1 1,086 13.5 1,235 35,500 1.260
No.9 200 HDY XTP 11.3 1,030 12.5 1,170 37,000 1.250
 
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