Reloading The 10 MM

Posted on: Thursday January 7, 2021
Reloading The 10 MM
MD Smith

MD Smith


(WC= WadCutter, SWC= Semi-WadCutter, HP= Hollow Point, RN= Round Nose, FMC=
Full Metal Case, FMJ= Full Metal Jacket, JHP= Jacketed Hollow Point and if GC
indicated, means Gas Check at bottom of lead bullet)

Loads for 10 MM: (.400 dia. bullet) (case length .992″)

(Note: These are MAXIMUM loads, you should use 10% less to start.)

(See note on Powders below or read all about various
Powders.)

Due to different barrel lengths, type of bullet, seating depth, primer type
and other factors, you may not get near the FPS charted. It is just a guide
and the reason you should start under these charges and work up.

155 grain JHP (Jacketed Hollow Point)
Bullseye 6.7 gr. 1,190 FPS
Unique 7.5 gr. 1,200
Universal 7.5 gr. 1,279
HS6 10.0 gr. 1,280
HP38 6.9 gr. 1,194
No. 2 8.0 gr. 1,296
No. 5 10.0 gr. 1,334
231 7.3 gr. 1,250/td>
540 10.8 gr. 1,355
170 grain JHP
Bullseye 6.2 gr. 1,135 FPS
Unique 6.9 gr. 1,135
Universal 6.7 gr. 1,187
HP38 6.3 gr. 1,119
HS6 9.3 gr. 1,190
No. 2 7.7 gr. 1,220
No. 5 9.7 gr. 1,275
231 6.3 gr. 1,120
540 9.9 gr. 1,265
180 grain FMC or JHP
Bullseye 6.4 gr. 1,125 FPS
Unique 7.0 gr. 1,125
Universal 6.4 gr. 1,122
HP38 5.8 gr. 1,061
HS6 8.7 gr. 1,109
No. 2 6.8 gr. 1,120
No. 5 8.7 gr. 1,197
231 1,050 5.8 gr. 1,050
540 9.3 gr. 1,190
200 grain FMJ
Bullseye 5.3 gr. 940 FPS
Unique 5.8 gr. 940
Universal 5.9 gr. 1,015
HP38 5.6 gr. 1,011
HS6 8.6 gr. 1,089
No. 2 6.3 gr. 1,041
No. 5 7.8 gr . 1,066
231 5.6 gr. 1,000
540 8.6 gr. 1,090
205 grain Lead Round Nose
Unique 5.0 gr.
Universal 5.0 gr.
HS6 8.1 gr.
No. 2 5.2 gr. 979
No. 5 7.0 gr. 1,063
231 4.2 gr. 870
540 6.6 gr. 960

Discussion: Only one LEAD bullet is show above. If you want to use lead, pick
one of the jacketed bullets and deduct .5 to .8 grains for a guide. Universal,
Clays and HS6 are from Hodgdon and similar to Bullseye and Unique. HS6 is
slowest of the group (Similar to 2400) and takes quite a bit more powder.
Respectively are No.2 and No.5 from Accurate.

A bullet with a copper gas check or copper plating is best for INDOOR ranges
to keep lead vapors out of the air.

*

Bullseye, Unique and 2400 are products of Alliant (formerly Hercules) Powders.
Clays, Universal, HP38, HS6 and H4895 are products of Hodgdon Powders. IMR
3031 and IMR 4895 are products of IMR (formerly DuPont) Powder Company. No. 2,
No. 5, #2230, and #2460 are products of Accurate Arms Company WMR, WSF, WSL,
760, 748, 231 and 540 are products of Winchester, Components Div.

References: Accurate Arms Co. 1996 Reloading booklet – – Alliant Powder Co.
Reloaders’ Guide (1995) – – Hodgdon’s Basic Reloaders Manual (1996) – – Speer
Reloading Manual, #12 – – Winchester Reloading Components Manual, 14th edition
– – Lyman Piston & Revolver Reloading Handbook, 2nd edition. – – VihtaVuori Oy
Company, reloading booklet (1995) – – Numerous magazine articles on reloading
special calibers and personal loads where noted.