Shorter & Sweeter — Browning A-Bolt Rifles in New 223 WSSM & 243 WSSM Cartridges
Release Date: 1/1/2003
Following the incredible success of the Winchester Short
Magnum (WSM) concept, many people in the hunting and
shooting world wondered just what Browning and Winchester
ammunition had in store for 2003...
For the third straight year, Browning firearms, in conjunction
with Winchester firearms and Winchester ammunition, proudly
introduces two more short, — super-short actually — fat
cartridges. The all new 223 WSSM and 243 WSSM. No, WSSM
is not a typo, WSSM stands for Winchester Super-Short Magnum,
and they’re the latest short, fat cartridges to be
chambered in the versatile A-Bolt rifle. It’s a safe
bet that no one saw these high-velocity, tack-driving cartridges
coming. Hence, Browning stands on the verge of a cartridge
revolution yet again.
When we say “Super-Short,” we
mean it. The new WSSM cases are nearly 1/2" shorter
(2.36" overall cartridge length) than
the already short-action WSM cartridges.
However, the body diameter and case head
dimensions remain the same, making for both
a super-short and super-fat cartridge providing
incredible speed and downrange energy.
|Bullet, Weight (grains)
||Overall Cartridge Length (inches)
||Muzzle Velocity (fps)
||Trajectory at 300 yds (0 at 100
||Muzzle Energy (ft. lbs.)
Thanks to the large diameter case, benefits
from the WSM, like uniform powder burn for
shot consistency and recoil reduction, carry
over to the new WSSM cartridges. Bullet velocity
to the tune of 4,060 fps from the 243 WSSM
firing Winchester 55 grain Ballistic Silvertip
ammunition is a real world number, and put
the new WSSM cartridges truly in a class
of their own. For more ballistic comparisons,
check out the accompanying chart.
These new, shorter cartridges also mean
a new, shorter action to shoot them from.
The new A-Bolt super-short action is approximately
1/2" shorter than the current short-action.
Tailoring a new, shorter action for the WSSM
eliminates the potential of misfeeds that
might occur from mating these shorter cartridges
to an existing short action. The shorter
action is also significantly stiffer, which
improves accuracy. In addition to accuracy,
losing 1/2" of receiver translates into
other benefits: A shorter action cycles faster
for quick follow-up shots and means less
weight for you to pack around all day long.
Think about it, with ballistics and benefits
like these, an A-Bolt WSSM could very well
become your favorite benchrest rifle, varmint
rifle and lightweight mountain rifle all
rolled into a single great looking, reliable,
Browning A-Bolt rifles in 223 WSSM and 243
WSSM will be available in Hunter, Classic
Hunter, Stainless Stalker, Varmint Stalker,
Composite Stalker, and Medallion.