10 mm (.400) 135 gr. JHP

These bullets are designed to meet even the most demanding shooter's needs. The 135 grain #8425 bullet was new in 1996. Providing rapid, controlled expansion for defensive use or on game up to large varmints at ranges out to 100 yards. Their unique design also produces excellent accuracy for competitive events.  One also can use any of these bullets in an "old timer," the 38-40 Winchester (38 WCF), made popular in both single-action revolvers and rifles for Cowboy Shooting. However, these bullets are not legal for competition. Special provisions may be required for crimping (since these bullets have no cannelure for roll crimping) and expanding ball size in reloading dies for the 38-40.

The #8425 was introduced in 1996.

Dia. (inches) Weight (grains) Sectional Density Ballistic Coefficients and Velocity Ranges
0.4 135 .121 .105 @ 1200 fps and above
.115 between 1200 and 1000 fps
.120 between 1000 and 850 fps
.105 @ 850 fps and below

Price: $31.87
Stock Code: 8425
100 bullets
To order by phone, please call 1-888-223-3006
*Sierra Bullets does not sell any loaded ammunition. What you are purchasing are bullets only and will need to be loaded into ammunition in order to be fired from a firearm. Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.


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Larry C of Houston, Texas February 8, 2014
The best and accurate load for my 40/10mm cal.reloads. If you want the flattest trajectory and higher speeds. This is the one. Very hard to find though.
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Billy B of fountain, Colorado January 15, 2014
Have used this bullet in my 10mm, very accurate
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