I decided I'd replace the pump first , make sure the rest of the pistol functioned . It does , but I can hear air leaking thru the reservoir seal when I pump it . I did manage to get a couple of shots off before the seal failed , and I think it's worth a few more bucks to replace all the seals . With today's seal kit purchase I'm now into this project a total of just over 33 bucks . I may decide to replace the barrel too depending on how accurate it is once I get the seals replaced .
Air pistol update
May 16, 2025
Last reply: 1 year ago
6 Replies
Unless somebody has been shooting steel BBs through the barrel its likely (sans lead fouling) as good as it was when it was new. Lead pellets are typically dead soft lead. They are not hardcast like pistol projectiles.
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Older models had a magnetic tipped probe kinda needed for holding BB's in place. They changed this at some point and the new probe was no longer magnetic and no mention of shooting BB's in the literature anymore...
This one has the magnet in the bolt . Can't really see down the barrel well enough to tell the condition of the rifling . I just pushed a pellet (miked .1755") down the bore from the muzzle , pushed easily and didn't engrave the head or skirt of the pellet at all . Is there enough air pressure on the pellet to expand the skirt into the rifling ?
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No, that's a myth from what I've read. It might have a smooth bore. I don't know about this particular Crosman but some are built with a smooth bore for use with BB's, darts and of course pellets but accuracy with the later will likely suffer...
Also not all pellets have the same diameter. Can be bought over and under sized and can vary through the batch in the tin. Some guys sort their pellets by diameter and weight in the hopes of better accuracy.
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Appropriate manual (per your year guess) and parts pdf's can be found here:
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It claims to have a rifled steel barrel in user manual. I'd try some different pellets, see how they fit. I've accumulated quite a few different brands and styles of .177 pellets. Some fit in the barrel really loose, some snug and others really tight. That's why you try a variety of them in your gun and see what works best with it. It can vary from batch to batch of the same brand/style too🙂️
Some pellet barrels are choked on their ends too, similar to a shotgun.
I have several different pellets/manufacturers . I'll measure some and see if any particular brand runs slightly larger . The barrel is rifled , but I can't tell what shape the rifling is . I'll do some accuracy testing once I get it shooting well .
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