You don't find pellets for the Benjamin model 310 because it is designed to shoot BB's only, not pellets. The model 312 shot .22 caliber pellets and the model 317 shot .177 caliber pellets but the 310 only shot BB's.
The Benjamin model 310 is part of a series of rifles that included: 310 BB rifle 317 .177 pellet rifle 322 .22 pellet rifle All were made from 1940 to 1969 Today Crosman owns Benjamin and Sheridan air gun's, see the link below for a partial list of Dates of Manufacture. Scroll down on the list until you find the 310 section. It may help if you have the serial number.
Where do I buy Benjamin Air rifle repair parts? Model 310 and 310
Let me guess your Rifle is either a model 310, 312 or 317. It was made in 1965
This model 310 was made in 1957
Most likely around late 1956 according to Crosman who owns Benjamin.
It's a BB/175 smoothe boar made from 1940 to 1969.
The 310 BB Rifle had a rear Sight with knurled knobs to adjust the sight. But first there is something you should know. The rifle is capable of shooting not only BB's but also .177 caliber pellets. The rifle has a smooth bore barrel, not a rifled barrel so it is a little less accurate than a rifled boar air gun. Also BB are less accurate than pellets by nature, because BB's tumble as they fly through the air. Pellets are more stable in flight than BBs. To sight the rifle aim at a target about 20 feet away from you. I suggest using a rest like a table. Aim at the target and fire. If you strike left of the target then move your rear sight adjustment to the right and try again. Do the opposite if the strike is to the right of the target, then move the rear sight to the left. It's the same for up / down. If you strike up, then move the sight down and reverse if it's too low. As a final note use the pellets to sight the rifle they will be more accurate. I suggest using match or wadcutter pellets they make a clean hole in the target. Also use Crosman Competition wadcutter pellets they are very accurate.
The Benjamin model 312 was part of the 310 series of rifles that included 310, 312, and 317. They came in .177 and .22 caliber. Production started with the model 310 in 1940 and ended with the model 317 in 1969, the 312 fell somewhere in the middle of that time period
The Benjamin 310 series (310, 312, 317) were made between 1940-1969. In good shape it is worth between $40-$60 Cracks in the stock will diminish the value
Yes: Crosman air guns owns Benjamin. On their home page (Crosman.com) you will find at the bottom of the page a place that you can click on "Find a service center" it will lead you to someone who repairs old Benjamin air rifles. Benjamin made these rifles between 1940-1969 in models 310, 312 and 317. One in Very good condition and working order is worth about $80 -$100. See related link.
It would be worth around $105. This model was made from 1940 to 1969. If you have the original box it is worth 25% more.