While I have seen a few cheap Zamac cast frame revolvers and deringers that showed serious deformation of the breech face from use of hi velocity .22 cartridges, I've never heard of this being a problem with any quality aluminum frame .22 revolver.
Older .22 rifles that used softer steel for the barrels often suffered bulged chambers from use of hi velocity cartridges, even hi velocity .22 short cartridges.
Never heard of this being a problem with any revolver cylinders of the same era.
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