Big Bore | 18.3mm | 640gr | 640gr | 50pcs | RPS

RPS Big Bore .728 – extremely heavy air rifle ammunition for specialist big bore applications

With an impressive calibre of 18.3mm and a weight of 640 grains, these RPS Big Bore projectiles are among the heaviest air rifle ammunition on the market. The Flat Nose pellet shape creates a maximum frontal surface area, making these pellets particularly suitable for target shooting and applications where maximum energy transfer is crucial. These Dutch quality products require special .728 calibre PCP air rifles with a minimum output of 300 joules for optimal performance.

Our experience from the Shogun team

The consistent Dutch production quality of these RPS Big Bore pellets is immediately noticeable during use. The extreme weight of 640 grains provides exceptional stability in flight, while the flat nose shape guarantees a large impact area. In big bore PCP systems specifically developed for this calibre, these projectiles deliver predictable performance. The ballistic curve deviates significantly from lighter projectiles due to the high weight, but this actually contributes to effectiveness at longer distances when your system delivers sufficient joule output.

Technical properties in practice

The 18.3mm calibre makes these pellets exclusively suitable for the most powerful air rifles. The lead material ensures perfect sealing in the barrel and retains its shape during flight, which benefits accuracy. The Flat Nose shape with its flat front maximises energy transfer on impact. With a weight of 640 grains, these projectiles are approximately 50 times heavier than standard 4.5mm pellets. Each pack contains 50 carefully produced projectiles according to Dutch quality standards.

Who is this air rifle ammunition suitable for?

These Big Bore projectiles are developed for experienced shooters with special .728 calibre PCP air rifles. A system with a minimum output of 300 joules is necessary to effectively shoot this heavy slug for PCP air rifle. Ideal for users seeking maximum impact for target shooting or other specialist applications where precision and power come together. Testing different grains helps to find the optimal balance between speed and stability for your specific air rifle. A chronograph provides valuable insights into the joule output and consistency of your shots with these heavy projectiles.

Ready to try the RPS Big Bore .728?