Try checking with the list of suppliers on the Remington Society of America Service/Parts page here: http://remingtonsociety.com/rsa/service
No. You can buy replacement triggers that have a lighter pull. They are only about ten dollars.
No but you can by the barrel code, check the Remington Society of America page: http://remingtonsociety.com/rsa/questions/barrelcodes
i have a22 cal bolt 510 target master to contact me firstname.lastname@example.org
The Targetmaster is the Model 510, it may have 1922 patent dates on it but it was made from 1939-1962 and they made over a 1/2 million of them in five variations.
A Remongton 510 .22 cal single shot rifle can be worth from $100-$1200 depending on the care and condition of the rifle. These rifles were manufactured between 1939-1962, and they are becoming very rare and harder to find.
Should be S L LR O for short, long, long rifle only
You can find Remington Date of Manufacture codes at www.rimfirecentral.com in Remington Forum
Numrich gun parts
There is a 2 or 3 letter code on the left side of the barrel back by the receiver. Send me the letter code & I can tell you when it was made.
I bought a 510 2 weeks ago for $100 that had not been well cared for. The rear sight elevator is missing and the bolt handle is loose. Stock finish is weathered, bluing is worn, and there is some pitting. The bore is in reasonably good shape. Function is good. The 510 I bought last year was in similar condition and cost about the same. Both were bought in eastern MA. Most That I've seen shot accurately or very accurately.
Find the serial number and google the Remington sight. They should have records of when the weapon was produced.