Subsonic 22lr7/6/2023 ![]() ![]() As it happens, I also shot the ‘semi’ through a Ruger 10/22 and Remington Speedmaster too, to test reliability.įirst up, were the Eley Subs and Contact. The Browning is accurate too but can be fussy so, a good test to see if the semi ammo was better in terms accuracy and reliability. I used a Sako Finnfire bolt-action and a Browning SA semi-auto for the accuracy tests, The Sako is very accurate and would show any differences between ammo types. It produces better expansion compared to other rimfires so, terminal performance is enhanced even at sub-sonic velocities and functions better in semiautomatic rifles too. The newer 42-grain Max features a Power-Point truncated nose hollow point bullet. It has a long truncated profile and wax lubrication with good accuracy. ![]() This is the mainstay of vermin shooters with a deep 40-grain hollow point, designed to expand quickly and penetrate less to deliver the energy on target. Specifically designed for semi auto rifles for reliability and consistent performance, it uses a heavier 42-grain bullet and higher velocity that sits on the sound barrier threshold and is lightly wax-coated for a reliable feeding and function. ![]() This 40-grain load has a deep hollow point bullet design for fast expansion and energy transfer and a heavy wax coating, which, combined to the slower velocity, makes it not suitable for semi-autos. The bullet is heaver, at 42 grains, for a higher energy transfer and lubed with paraffin wax to avoid build up in the mechanism and magazines. Although intended for competition shooting, as it’s a round nose, but it still has applications for reliability in sporting rifles. The Contact as a subsonic specifically to work better in semi autos for more reliability. The bullet is lubricated with a non- greasy lube to help in a smooth function in your rifle. This is a hollow point load and designed to have a shorter penetration and better bullet expansion to deliver a good stopping power compared to standard velocity. Today, manufactures make subs for semi-autos, so I thought a comparison between them and the standard fodder would be useful. If you shoot them in a semi-automatic, you can get reliability problems. 22 rimfire has been the mainstay for vermin control and today the top choice seems to be the sub-sonic (subs) version, primarily designed for use in a moderated bolt action rifle. ![]()
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