I own a Ruger Deerstalker Carbine (SN 20xx). The Database places it squarely in 1962 as the beginning SN for that year is shown as 1339. However, the letter I received from Ruger states it was mfg'd and shipped in November of 1961. I understand the database is not 100% accurate, but there is approximately a difference of 660 SNs between what the site shows as the first SN for 1962 and my rifle. I tried calling the records dept, but they are not accepting calls. Could it be possible for that large of a number of rifles to have been mfg'd and shipped that far out of sequence?