The Crosman Recruit (1) has a smoothbore barrel. So its not going to be as accurate as an airgun with a rifled barrel. And its got the typical, 2 stage, heavy, Crosman trigger.
Add in the fact that it weighs less than 3 lbs, which makes it hard to hold steady when shooting offhand, and you've got the makings of a plinker out to 50-75 feet. (A plinker will consistently deliver 1-2 inch groups or hit a soda can every time at those distances.) That said there are a couple things you can do to improve the gun's accuracy a bit. First, ditch the BBs in favor of good quality pellets.
BBs are sub-caliber (.171-.173 inches in diameter) so they sort of roll/bounce down the barrel. Much like a musket ball from an old-fashioned musket, exactly where the BB goes will be determined by the direction of the last bounce in the barrel. Pellets on the other hand have a very thin, soft lead, hollow skirt that upon firing should expand to provide a gas seal and grip the barrel fairly tightly.
Couple that with the fact that like Foster/Bernecke shotgun slugs, pellets are high-drag projectiles and even though your gun is a smoothbore you should see at least some improvement over BBs. If you're using better quality pellets like JSB Exacts, Crosman Premiers, RWS Hobby's, etc... instead of the el-cheapo Crosman and Daisy pellets that are typically sold at Walmart, you'll probably see more improvement, but better quality pellets get expensive... Second, put a decent scope on your gun. Note I said a decent scope.
The 4x15mm scope that comes with the Recruit isn't exactly what I'd call decent. It works. And once you dial it in and learn to hold the gun steady, it should work better than the never to be sufficiently damned Crosman fiber-optic sights (which have a front bead way, way too big for precise shot placement at 50 feet).
However an inexpensive ($30) Centerpoint, Leapers, or Gamo 4x32mm scope will offer a much wider field of view and brighter image so you can see what you're shooting at much more clearly. And the better you can see what you're shooting at, the better the accuracy you'll get. Third, practice.
A lot. Because the Recruit weighs less than 3lbs and has a fairly heavy trigger pull, its going to be very easy to pull your shot because your trigger pull isn't consistent or you took a breath as you pulled the tigger, or your heart-beat wasn't steady... Or you get the idea. The more you practice, firing and following through on the shots the better you'll get.
And short of buying a better quality gun with a rifled barrel, that's about all you can do to improve your accuracy with this particular gun. Like I said before, its a plinker. Its not a match rifle.
If you want the sort of accuracy you'd get from a 10-meter match rifle, you need to buy something like the IZH 60 or Daisy 953. If you just want to improve what you're doing, then the above suggestions should help a bit.
Just to add one small bit of info to "J Kirsch's" excellent answer. Walmart does sell a Crosman "Premium" pellet for $3 per tin(300). These pellets are a grade below Crosman Premier pellets, but should make a significant difference in accuracy.
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