.243 Winchester Super Short Mag (WSSM)100 Grain Nosler Partition~100% Hand-Loaded!!
$75.99
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Common Questions
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Yes, there may be restrictions on the sort of ammunition permitted for hunting in your area. These regulations may include limitations on bullet design, bullet weight, or ammunition attributes. It is critical to read and follow the hunting restrictions established by the local wildlife or hunting authority.
Terms & Conditions
I acknowledge and confirm that I am ordering items listed on this website and agree to the following conditions:
Must be 18 years old or older, depending on your state laws. Buyer is entirely responsible for compliance with all local laws. Know the rules and laws that apply to you before you buy.
Our ammunition is loaded to SAAMI specifications unless otherwise noted. Any firearm modified from its original, factory condition, may not match the performance achieved through our extensive testing at our facilities. This includes primer detonation, accuracy, and stated velocities.
WARRANTY:
Choice Ammunition, Corp. warrants our ammunition for a period of one year, to be free of defects in workmanship and materials. If we find the ammunition to be defective for either of these reasons, we will replace the ammunition free of charge including shipping.
We carefully evaluate any warranty claim on a case by case basis. Please contact us at 406-961-6942 to report any issue and receive a specific RMA (Return Merchandise Authorization) number for your case and return. We strive to provide unmatched customer service in the industry. Please be courteous and show patience while an unfortunate warranty claim is being reviewed.
Payments, Shipping, & Refunds
Payments
We accept the following forms of payment:
- 1. Credit Card through our website’s secure checkout
- 2. Credit Card through our phone at 406-961-6942 Check or money order.
Shipping
- Most orders shipped through UPS ground with detailed tracking provided.
- Standard delivery time is 2-7 business days from the date your order was placed.
Return Policy:
All sales are final. No returns of product allowed.
Order Cancellation Policy:
You may cancel an order ONLY if you contact us prior to shipping. We ship 95% of all orders within 36 hours of being placed, so you must contact us immediately if you wish to cancel your order.
PRIVACY POLICY – COMMITMENT TO YOUR PRIVACY
This site is owned and operated by Choice Ammunition, Corp. Your privacy is of the utmost importance to us. All credit card information processed through our secure server is not stored by us other than name and contact information.
We do not sell or provide your information or any order information with any third parties.
CA PROPOSITION 65 WARNING
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Choice Ammunition manufactures premium hand-loaded ammunition in Victor, Montana.
Every round is individually loaded by trained technicians using proprietary powder formulas and undergoes 100% visual inspection before packaging.
We use only premium components—Nosler, Barnes, Berger, Hornady, and Sierra bullets paired with new brass from top suppliers.
Our load development experts and ballisticians create precise powder charges and consistent seating depths across 700+ options in 25 pistol and 75 rifle calibers.
From varmint hunting to African dangerous game, defense to cowboy action shooting, we deliver the accuracy and reliability that serious shooters demand with superior customer service and fast shipping
.243 WSSM 100 Grain Nosler Partition- The .243 Winchester Super Short Mag (WSSM) is a high-velocity, flat-shooting centerfire cartridge from the WSSM family that delivers magnum performance in a short action. Developed in the early 2000s to maximize case efficiency and shorten action length, the .243 WSSM propels 80–105 grain bullets at impressive speeds, producing a flat trajectory and strong downrange energy.
Ideal for varmint work, pronghorn, and medium game like deer, the .243 WSSM shines where long-range precision and low wind drift matter. Hunters value its light recoil, quick follow-up shots, and effective terminal performance with suitable bullets — producing humane kills at extended ranges when shots are well-placed. Highlights include efficient case design, high retained velocity, and excellent ballistic coefficients in modern bullets, all in a compact, short-action package.
Why it remains a great hunting caliber: it balances accuracy, energy, and shootability. For those who want magnum-like trajectories in a compact rifle with manageable recoil, the .243 WSSM offers versatile performance for small to medium game while providing the long-range confidence many hunters seek. Though factory loads are less common than mainstream cartridges, handloaders appreciate the .243 WSSM for efficient powder use, easy tuning, and excellent barrel harmonics when matched to quality bullets today.
Choice Ammunition’s .243 WSSM loaded with the 100-gr Nosler Partition is the best choice for deer, antelope, and predators. The Partition’s dual-core design delivers controlled expansion and deep penetration, ensuring ethical, one-shot kills on medium game. Choice’s hand-loading process uses precise powder charges and quality brass to maximize velocity and consistency, producing exceptional accuracy and reliable terminal performance. Low recoil helps fast follow-ups, while high retained energy at range makes it ideal for open-country shots where long-range performance matters.
The Bullet:
The Nosler Partition bullet has earned it’s respect with the following characteristics
1 Nosler Engineering
Nosler’s special lead-alloy, dual-core provides superior mushrooming characteristics at virtually all impact velocities.
2 Fully Tapered Copper-Alloy Jacket
Ruptures instantly at the thin jacket mouth, yet the gradual thickening along the bullet’s axis controls expansion and curls the jacket uniformly outward at high and low velocities.
3 Nosler’s Integral Partition
Supports the expanded mushroom and retains the rear lead-alloy core. The enclosed rear core retains more than two-thirds of the original bullet weight for deep penetration.
4 Dual-Core Construction
Every Partition bullet in the Nosler line delivers optimum length, weight and ogive design for maximum in-flight and terminal performance.
- 100% Hand-Loaded
- Velocity: 3,0338
- G-1 BC 0.384
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