With today's leather (holsters) it is not a good idea to store a pistol in them. Mostly because you do not know where the leather was tanned, this is especially true of the lower cost holsters. Some leather other than USA's are tanned with an acidic process and will cause the blueing to come off or rust to form. USA's vegetable tanned leather is safer, but still runs a risk because of the dyeing process (what dye was used). As stated it is fine for a match but not for long term storage. JHMO