Permission to reprint the load data provided on this page was GRACIOUSLY given to me by ALL of the manufacturers above.

They were all concerned about the LIABILITY issues being that ONLY the DATA was being provided, but I agreed to include in EACH page their individual caveats, and credits where due.

NONE of this data is to be reprinted for commercial purposes. ANY reprinting Electronic or otherwise MUST have permission of the manufacturers, I cannot grant this permission by inclusion in this site.

Taking their safety issues one step further, I'd like to put forth some items that WILL change the data for ALL the the manufacturers.

• Increased air ambient and ammo temperature
  DO NOT work up loads in the spring, fall, or winter, then touch off a few on a 110 degree Texas afternoon... IF you value your face. Remember increasing temperature of any component WILL increase temperature, AND pressure within the case.
• Different bullets

SOME bullets have VERY different characteristics in the bore. The "Bearing" surface of the bullet to the bore WILL be different from style to style from the SAME maker, as well as different manufacturers.

• Different powder brands, AND possibly different lot numbers too

DO NOT substitute similar burn rate powders. While Clays, and Bullseye MAY be close on the burn table charts, they are VERY different powders, and react differently based on a number of variables.

• Changing primer brands, or type

Don't go to a "MAGNUM" primer without lowering your powder weight 10% or so.

• Swapping handguns

Some types of rifling "MAY" present very different bore resistance to a bullet, AND create pressure problems. If you have several firearms in the SAME caliber, test out ALL your loads in the developmental stages in ALL the firearms you own. Also developing loads in a SHORT barrel, then using them in a LONG barrel can also ruin your day. Even loads from IDENTICAL barrels is cause for caution. Any barrel can vary just enough to change pressures you get.

• Brass deviations

Brass from different manufacturers will generally have substantial differences in case wall thicknesses. This can raise or lower pressure depending upon if there is MORE case space behind the bullet, or less. Generally this will apply more to higher energy loads, but BE CAREFUL!

• PRESSURE specs

LOOK at ALL the specifications for ALL the data. BECAUSE a load appears to be MAX on the powder measure, it may be very "LOW" in pressure. This DOES NOT mean that you can boost the load beyond that. Some powders like Clays (no loads listed here) have weird pressure curves that may actually be exponential rather than linear as you add tenth grains increments into the case!

• Tolerance stacking
ALL the above may stack up just enough error which may be slight individually, BUT collectively, they COULD be VERY dangerous. WATCH what you do, and be careful about your load procedures.

See pressure sign descriptions below to get an idea WHAT to look for when reloading

So many people have written, I decided to have a go at you all submitting HANDLOADS for display here. BUT I think there needs to be some ground rules set to satisfy the most litigation prone.

NONE of this data is supplied by manufacturers, and NO endorsement of ANY product is made on this page.

I personally think all high powered 10mm's should use ONLY new or once fired brass. The load manuals must take into account that brass of unknown origin is being used, and must keep pressures safe for RELOADING. HANDLOADING on the other hand SHOULD give a greater safety margin at the top of the reload manual data charts.

With that out of the way, I'll lay out the ground rules for you to get your 10mm Pet Loads on the page.

• ALL loads assume "HANDLOADS" using NEW brass.
• Disclose if data is over a MAX load in a load book or home grown
• Your EMAIL, and name will be published to either thank or curse as the author
• NO loads that exhibit pressure signs will be posted.If the cases bulge, YOU use em
• All details like brass headstamp, primer, air temperature, LOA, really help.
• Gun brand, and barrel length and any other gun details like porting.

Now that you read the above, I'll give you MORE caveats

1. WORK up to these loads starting at 15% below the load listed.
2. Revolvers present additional problems IF you plan on reloading for them AND automatics. MAKE SURE any load developed in a revolver IS NOT fired in an automatic. Pressures CAN be much higher in an auto if loads were developed in a revolver.
3. STOP increasing charges when ANY classical signs of pressure are seen. IF you don't know what pressure signs look like DO NOT USE THIS DATA

Pressure Sign Descriptions

• Flattened primers
• Pierced primers
• Extractor cut on rim impression
• Bulged cases
• Split cases
• Sticky extraction
• NO extraction
• Case ruptures

Data Provided by Page Owner Gary Napolitano
Bullet Type  Hornady XTP 200 grains
Powder Type  AA#9
Powder Wt.   12.5 NOT over Accurate manual
Primer Type  WWLP
Case   Type  MIDWAY NEW
Velocity     1200fps  
Temperature  80 Deg F.
LOA          1.250"
Gun used     Delta Elite,Megastar

This powder may throw +/- .1 grain. I set the
powder charge at 12.5 allowing for a max of 12.6

Data Provided by Dan Easterling 002942@airmail.net

Bullet Type  175 grain LSWC
Powder Type  WW 231
Powder Wt.   5.9
Primer Type  unknown
Case   Type  Mixed
Velocity     1075 fps  
Temperature  unknown
LOA          unknown
Gun used     unknown

This is a good Bowling pin load. If you hit the pin, it's
off the table.

Data Provided by Lee Spencer lspenser@gte.net
Bullet Type  200 Hornady XTP
Powder Type  WAP
Powder Wt.   9.5
Primer Type  unknown
Case   Type  New Federal
Velocity     1200 fps  
Temperature  Unknown
LOA          1.300"
Gun used     S&W 610

Extremely accurate. (Ed. NOTE. This was
developed in a REVOLVER,Look for pressure
signs when nearing this MAX load in an automatic.
It was VERY accurate in my GCDE. I got hold of
enough WAP powder to load a few dozen with the XTP's

Data Provided by Terry Merrill Email:terry_m@primenet.com
Bullet Type  180 Gold Dot
Powder Type  Viht 3N37
Powder Wt.   7.9
Primer Type  WWLP
Case   Type  New Winchester
Velocity     1212 fps  
Temperature  Unknown
LOA          1.300"
Gun used     S&W 1006

Clean medium-slow burning powder. Excellent transfer of 
energy to point of impact.  

Data Provided by Michael Medley mmedley@ameritech.net

Bullet Type  180 Hornady XTP, or 180 FMJ
Powder Type  AA5
Powder Wt.   8.0
Primer Type  WLP
Case Type    UNKNOWN
Velocity     980 fps  
Temperature  Unknown
LOA          1.250"
Gun used     Omega

Good Fed lite duplicate load. Try this and see
what some FBI agents complained about.

Data Provided by Gerald Huhtala
gerald.huhtala@westgroup.com
Bullet Type  180 FP BB Lead cast
Powder Type  WW 231
Powder Wt.   5.3
Primer Type  WLP
Case Type    NEW Starline
Velocity     1006 fps  
Temperature  Unknown
LOA          Unknown
Gun used     Glock 20

A MODERATE load, makes 181 PF for IPSC, and
is easy on the gun and shooter

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