Well, yes, but there’s a downside. Rimfire ammo is ignited by a ring of priming compound inside the rim of the case. This compound is a mixture of lead styphnate, antimony sulfide, barium nitrate, water (to make it easier to distribute the mess) and in some cases just a hint of ground glass to create friction. The trick is to get this slurry into the case rim evenly, and with no spots missed. Eley ammunition has long had a highly secret and highly effective method of doing this, and has long been atop the target-ammo heap, which is no coincidence. On the other hand, uneven priming results not only in poor accuracy, but in misfires.