It wouldn't bother me to use shorts in a sporter rifle. In a longer barrel they're very quiet. But I would never, ever use them in my target or benchrest rifles. The case, being shorter than a LR, stops well within the chamber. When you fire enough of them through a match .22LR chambering, they leave a ring at that point that starts to pit into the very smooth chamber of those guns. And the bullet has to travel down the remainder of that chamber before it bites into the leade and rifling - rather than biting into the leade before firing. So, if it cants slightly at ignition, it stays canted all the way down the barrel.
My only suggestion to you is, if you're going to shoot .22 short in a LR chamber, clean out that ignition ring after you're done each time.
My only suggestion to you is, if you're going to shoot .22 short in a LR chamber, clean out that ignition ring after you're done each time.


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