Sheridan air rifles who is owned by Crosman Sheridans are 5mm air rifles
It's a rifle, in fact very small calibre. .22 is roughly 5mm's.
The Sheridan Blue Streak air rifle uses a 5mm pellet. This is about .20 caliber- larger than the .177 pellet, smaller than the .22 pellet. I have been able to get these at Bass Pro Shop. There are also at least 3 lots of them for sale on Ebay right now. Only the 5mm/ .20 caliber pellets will work in your rifle- do not try to substitute anything else. P.S. Have had one for years. These are extremely good air rifles- very accurate, very powerful.
I believe you are asking about a Sheridan .20 cal (5mm) air rifle. They started to make this rifle in 1949 and stopped in 1990 ( sheridan sliverstreak model ) During the 1990's the name changed to C9 sliverstreak and C9 bluestreak. The value is determined by the current condition of the rifle. You did not give any such information , therefor I can not answer you.
Crosman air gun company owns Sheridan. Crosman offers a free service to locate shops that repair Crosman products. See the link below.
What is the age of a Sheridan c series 5mm 20cal rifle serial number 370862
No. a 177 is a 4.5mm pellet. A 5mm is a 20 cal pellet. A 5.5mm is a 22 cal pellet Don't try it in the wrong airgun.
Crosman owns the Sheridan line of air guns. They offer a service to locate shops that repair older products. See this link. http://www.crosman.com/general/find-a-service-center
There are 3 versions of the Sheridan Blue Streak. See the link below for the 2nd version. BTW today Crosman owns the Sheridan and Benjamin line of air guns. This link is from Crosman
These rifles are made in China and currently carry no value in a latest "Bluebook of airguns" (8th edition). Because the quality varies greatly from rifle to rifle. At present each rifle will have a different value as it comes out of the factory.
75-200 USD
Your rifle can be aged based on its serial number. Please see the link below.
Only if the rifle is designed for pellets. If it is a "Red Ryder" then the answer is NO. Daisy makes PELLET rifles.