![]() Eley specifically developed this as a subsonic round to work better in semi-automatic rifles. Also, the case and rim design have been optimised to deliver consistent reliability in a wide range of competition firearms, where a wider tolerance of headspace can cause misfires or light strikes.įirst is the Contact 22LR. Eley’s performance is made possible by innovations in bullet profile and brass case design, where the new bullet profile eases the loading of each round into the chamber for an improved cycling rate, even at speed. 22 rimfire projectiles and semi-automatic fire. The next three rounds are from Eley and they have really thought about the issues related to. The copper-plated bullet is designed to reliably feed in high volume scenarios. The clean-burning powder provides consistent velocities as well as cleaner barrels, plus less gunk deposits in the action. ![]() Being able to achieve the advertised 1.5”, 10-shot groups at 100 yards, means they are good for practical rimfire challenges and provide fast, reliable cycling. The bullet is less liberally coated in wax and has a solid rounded head for reliable feeding and function.īoxed in cartons of 300 rounds, like the Winchester M22, the CCI AR Tactical is designed for high volume, reliable, semi-auto rifle use. However, it is subsonic in semi-auto rifles. It uses a heavier 42-grain bullet and produces higher velocities in bolt action rifles that sits on the sound barrier threshold, dependent on weather conditions. The RWS Semi-Auto ammo has been around longer and established itself as a great round that’s both accurate and consistent in a wide range of rifles. They come loose in boxes of 400 rounds, so obviously anticipating a high semi-auto round count! This is meant to help function and cycling in a semi-automatic and reduce the build-up of waxy/oily deposits associated with normal, lead. Round-upįor the test, I got some of the new Winchester M22, RWS Semi-Auto, CCI AR Tactical as well as Eley’s Action, Force and Contact ammunition.įirst up are the Winchester M22 cartridges, which have a standard 40-grain bullet weight but with the traditional round nosed design, now black copper plated. It’s all well and good cycling OK, but accuracy is still an important issue too. Quite often reliability is increased with higher velocities but some want a quieter life, so some manufacturers instead have upped the bullet weight from the standard 40-grains to 42-grains, to achieve consistent results.īoth methods work and it is really down to your rifles choice to what it likes to digest for accurate results. 22LR subsonic loads through the rifle, although many sporting and custom part swaps can assist in this matter.īy far the easiest way is to use ammunition designed specifically for semi-auto use and I bought a selection to test for this article. 22LR ammunition does not quite have the ‘oomph’ to cycle their semi-automatic rifles consistently.
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