10mm load data

[RifleBowPistol]

Looking for 10mm load data for a carbine, or T/C Contender. I just realized this morning, I need to get the latest Lyman loading manual, the one I have is from the mid 80s, probably printed in the mid 70s, because it does not have any 10mm load data. What I like about the Lyman manuals, is they will list load data for pistol calibers for auto loaders, revolvers, T/C Contenders and possibly even carbines. So calibers like 9mm an 45 ACP may have load data in 3 sections, if not 4. But my Lyman manual is too old. I have two newer manuals that have a lot of 10mm load data, but only for auto loader handguns.

I have 3 different 180 gr. hollow points I plan on loading, then eventually casting and loading some 180 gr. and 200 gr. bullets.

In the manuals I have, I have found load data for Autocomp, I bought that for my wife's and daughter's 380s. Prefer not to use that, but I can get more, or should be able to. Then I have some Longshot, I used to have a can of AA7 for my 10mm, but I guess I finally used it up, I can't find it.

I looked at pressures of both Autocomp and Longshot, the max loads for Autocomp, are around 36,000 psi, as where the max Longshot loads are around 34,400 psi. Then it looks like Longshot is a noticeably slower burning powder. So everything I am seeing, says I should be using Longshot in my 10mm carbine. The only data I have is for autoloader handguns, I guess I can slowly add powder, till the primers start to flatten out.

If you have any 10mm carbine load data or loading experience, I would be interested in seeing data or any advice. Thanks.

[WhiplashTX]

I plugged it into quickload with a couple of assumptions, 180gr XTP and 16" barrel.

Longshot at 9.6gr max.......1500fps
AA7 at 12.5gr max............1624fps

Didn't have Autocomp powder listed.

[Drycreek3189]

You should be able to find loads on the internet. I mean from the powder manufacturer, and not Joe Blow-it-up.

[M16]

Blue Dot, 800X, AA #9 are my favorites

[RifleBowPistol]

You should be able to find loads on the internet. I mean from the powder manufacturer, and not Joe Blow-it-up.

I did some searching, oddly it brought up posts on various sites, where people were asking general questions about 10mm, in various guns. It did bring up a 10mm forum. I am going to join that.

Most of the time when I do searches for load data, I find quite a bit of good data. The closest I came up with, was on discussion out which powders guys like for their 10mms. No load data, just what their favorite powders were for the caliber, along with characteristics of some of the various powders.

[RifleBowPistol]

I plugged it into quickload with a couple of assumptions, 180gr XTP and 16" barrel.

Longshot at 9.6gr max.......1500fps
AA7 at 12.5gr max............1624fps

Didn't have Autocomp powder listed.

Dang, that AA7 is getting close to my old 44 Mag. 180 gr. numbers I used to get from my 7 1/2" Super Blackhawk. I was getting 1776 fps from that gun, with a charge of H110, don't remember how much powder. I thought those were smoking fast numbers for a 44 Mag.

Thanks. I am going to try the Longshot today, then see if I can find some AA7 again.

[RifleBowPistol]

Blue Dot, 800X, AA #9 are my favorites

I have read many guys like AA 9, but I have not tried it. The only time I have ever bought any blue dot, was probably 38 or so years ago, I used it for some light 38 Special loads. Never have tried 800X, think I used some 700X many years ago, don't have any idea in what, just remember having the powder. Probably 38 Special loads.

[xman59]

blue dot is excellent in the 10mm,,, been loading it since 1984,,,,

[WhiplashTX]

Dang, that AA7 is getting close to my old 44 Mag. 180 gr. numbers I used to get from my 7 1/2" Super Blackhawk. I was getting 1776 fps from that gun, with a charge of H110, don't remember how much powder. I thought those were smoking fast numbers for a 44 Mag.

Thanks. I am going to try the Longshot today, then see if I can find some AA7 again.

Just remember those are theoretical max loads and velocities. Quickload has proven very accurate for rifle powders but pistol powders have more variance. I've been disappointed in it for subsonic loads.

Here's a couple more for the other powders listed.

Blue dot at 11gr.......1473fps. 100% fill while pressure is at 28k. 85% burn.
AA9 at 13.5gr max....1593fps 90% burn.

[RifleBowPistol]

Just remember those are theoretical max loads and velocities. Quickload has proven very accurate for rifle powders but pistol powders have more variance. I've been disappointed in it for subsonic loads.

Here's a couple more for the other powders listed.

Blue dot at 11gr.......1473fps. 100% fill while pressure is at 28k. 85% burn.
AA9 at 13.5gr max....1593fps 90% burn.

Thanks. Actually find it interesting that it listed the powder charge for Longshot so low. The two manuals I do have that list load data for 10mm auto loaders, list either 11 gr. or 11.4 gr as the max charge for Longshot. You said Quickload only listed 9.6 gr. as max. I am going to start off a few grains under max, based off of the load data I have in my manuals, then work up from there and see how it goes.

I am hoping I can get noticeable increase in velocity over a 5" barrel 10mm auto loader handgun. Some or most as a result of the longer barrel, then some hopefully from slightly large powder charges.

I was comparing 9mm and 10mm load data, since I can come up with 9mm load data for a T/C Contender and a carbine, along with common auto loader handgun load data. The autoloader handgun load data, max pressures are 33,000 psi. For some of the higher pressure load data for the 9mm, I found loads at 36,000 psi and 37,000 psi. Then in other areas, I found load data for up to 42,000 psi. That much pressure increase should do quite a bit for a 9mm.

For the 10mm auto loader handgun data, the max pressures were listed at 36,000 psi.

I shot my 10mm AR for the first time yesterday, picked up all of the brass, then later went to dump those cases in with the rest of my 10mm brass. I was kind of surprised to see the CCI brass, uses small pistol primers. That used to be one of the things people criticized the 10mm for, was it used large pistol primers. I went through all of the brass on the top of the pile of 10mm brass, 95% of those pieces were small pistol primer brass. I am pretty happy about that. I would bet 70% of my 10mm brass has large pistol primer pockets. Hopefully at least 30% has small pistol primer pockets, but it may be more like 10% to 20% of the brass I have, have the small pistol primer pockets. I don't know when that started. I know a lot of the brass I have is from the 1990s, so that stuff will all definitely have large pistol primer pockets. I will have to sort the small pistol and large pistol primer brass out and separate them.

[bubba joe]

Blue Dot, 800X, AA #9 are my favorites

I also use these powders for 10mm, BD is my favorite....