Description
The Federal 243 100gr JSP load is built for shooters who want more from their .243 Win than typical factory ammunition delivers. Federal loads a 100 grain jacketed soft point to a rated 2960 feet per second, producing about 1946 foot-pounds of energy. Power-Shok soft points use a tapered copper jacket and a lead core designed for controlled expansion and consistent energy transfer on deer-sized game.

Why Choose the Federal 243 100gr JSP
- 100 grain jacketed soft point bullet
- Rated 2960 fps and 1946 ft-lbs
- Brass cases with reliable primers
- Controlled-expansion soft point
- 20 rounds per box, item 243B
Built for the Hunt
- Accurate, consistent hunting performance
- Reliable feeding in bolt-action and semi-automatic rifles
- Quality brass cases and reliable primers
- Suited to a wide range of game at typical distances
Buying ammunition by the box from the same production lot keeps velocity and point of impact consistent from one range trip to the next. Keep a record of the load you carry, check your ammunition for dents or loose bullets from time to time, and rotate your carry rounds so the ones in your firearm stay fresh. These simple habits help you get the full performance Federal builds into every cartridge.
Before you trust any new load, fire enough rounds through your firearm to confirm it feeds, fires and ejects reliably and that the point of impact matches your sights. Full-power loads produce more recoil and muzzle blast than typical range ammo, so practice with the Federal 243 100gr JSP until you are comfortable with it, and store the rest in a cool, dry place in the original box.
About the .243 Winchester
The .243 Winchester was introduced in 1955 on the .308 case and quickly became one of the most popular dual-purpose cartridges in North America. Lighter bullets make it a flat-shooting varmint and predator round, while heavier soft points of around 100 grains are a proven choice for deer and pronghorn. Its mild recoil makes it a common first centerfire rifle for new and young hunters.
Specifications
- Brand: Federal Premium
- Product Line: Power-Shok
- Caliber: .243 Win
- Bullet Weight: 100 grains
- Bullet Type: jacketed soft point
- Muzzle Velocity: 2960 fps
- Muzzle Energy: 1946 ft-lbs
- Case: Brass
- Quantity: 20 rounds
- Item Number: 243B
- UPC: 029465084288
Why Choose Federal 243 Ammo
Hunters looking for 243 deer ammo want a load that shoots accurately and performs on game. This Power-Shok load from Federal pairs a proven bullet with consistent powder charges and quality brass for dependable results in the field.
The 243 100 grain soft point bullet leaves the muzzle at about 2960 fps with roughly 1946 ft-lbs of energy.
Whether you are sighting in, practicing or heading to the field, choosing a proven load like the Federal 243 100gr JSP removes one more variable, so you can focus on your fundamentals and shoot with confidence every time you pull the trigger.
Federal Premium has made ammunition in Anoka, Minnesota since 1922 and is one of the largest ammunition makers in the country. Its Power-Shok line is built with the same quality controls as its premium hunting and law enforcement loads, and federal 243 ammo is trusted by shooters, hunters and agencies across the United States.
Always confirm your firearm is chambered for .243 Win, wear eye and ear protection, and follow all federal, state and local laws.
Browse more ammunition at Mag 5 Firearms, or visit Federal Premium for more about their full line of loads.








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