Crosman 1377 LOVE...

I'm surprised I haven't seen any mention of the old standby that more people have probably shot than all the others combined, the Crosman 1377. So being the instigator that I am here goes.....

Barrel Cocker, cir 1982---


I've had this Crosman 1377 since the early 80's, but quit shooting it since it needed new seals. Luckily I never threw it away. I decided to try my luck at putting new seals in the gun, so a seal kit was ordered from Archer Airguns, they had the best price, plus it included two sets of seals. No problem putting in the seals, and while I was at it I decided to polish the hammer and give the trigger some attention. I doubt either did that much, but hey I like to tinker anyway. Once sealed it was shot, but having over 40 year old eyes makes seeing the sight and target difficult.........so another upgrade was needed...and the breach/bolt cover kept opening when shooting...


Hello steel breech and scope mount....I scored a steel breech with target sights on Ebay. But there was a problem with the steel breech and bolt. The breech to the original barrel was too large for the o-ring to seal. So another barrel and new trigger shoe were purchased from Alchemy Air Werks. But no it wasn't that easy, now the breech was to small for the bolt to seal. So a little work with a drill and dremel to fix that.





after all this was fixed, come to find out the gun shot to high and the rear sight ran out of adjustment....no big deal as I couldn't see the sights/target with my +40 year old eyes. Enter 4x Bushnell scope and mounts via China for about $25...I could swing that. Note still a barrel cocker at this point.



1st group with scope and stock trigger. The trigger is heavy but sort of acceptable.....well not really. Groups taken from resting gun on metal stair railing. I was happy with this group.



...but I wanted to change the gun over to a bolt cocker...so I found some drawing if the pump cylinder and modified accordingly, with a dremel, to accept a new style hammer. But buying the parts separate was more expensive than buying an adjustable hammer and spring, via Ebay of course.






cylinder slotted for bolt cocker...spacers were added to keep from screwing adjuster in too far, since this would not allow pressure to build in the cylinder.




a little silicone was placed between the transfer port and breech...



Inside the breech you can just see the pin behind the bolt for the hammer.




one major benefit with the adjustable hammer as the trigger improved dramatically!!! So I'm not sure if the super sear kit ordered from Archer will help all that much now. It will at least allow slop to be taken up in the side to side movement.






so with all this time an money...not like it really was a concern..how does it shoot.....below are 10 shot groups taken at 27 paces (30in stride BTW)










 
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I picked up one on sale, and shot two tins of 2.97 Crosman destroyer pellets, and about 200 Benjamin hollowpoints. I gave the gun to a friends grandson with two full tins and the partial of the hollowpoints. I told him to save me the empty tins. Well less than 5 months later he gave me 9 tins of the hollowpoints. Nothing was done other than a weed whacker line and a few patches every half tin or so. the action is getting a little sloppy, Grandpa got him a Prod for graduation.
 
PROD? I shot mine in my basement when I was a kid since my father wouldn't let me carry it outside. One bad ricochet to the upper cheek and I was done. I went to the local store and bought myself a $275 crosman rifle and hid it in the basement. Overtime I went outside I would bring it with me. We had some multi story forts we built in the woods that we would practice shooting off of. 
 
I have one I shoot with my grandson I have been thinking of upgrading the rear sight. I had another one that the seals went out in but I think someone stole it out of my shop I can't find it and a few other small items. I had some sheet rock work done a while back I think one of those guys may have had sticky fingers serves him right since the seals were out in it. It kind of pisses me off though my old neighbor gave it too me before he died and it had sentimental value I planned on having it fixed. I love the gun the new one I have I bought at a yard sale.

When I was a boy about 40 some years ago I had one that was similar but it was all black and the pump handle was black metal the whole gun was metal it may have had plastic grips I am not sure does anyone know what gun that was? It looked very much like the modern 1377. I seem to remember the old one was .20 cal but I could be wrong about that. I am not sure what ever happened to it I sure wish I still had it.

Mike
 
"gtavares"Hi, just using your topic....hope you don't mind ! :)

Does anyone know how to reduce the sound when you are pumping the gun ? Thanks !
A piece of the fuzzy side of Velcro stuck to the pump tube helps quite a bit. You can usually find it with a peel and stick backing. I think I got the stuff I used from the dollar store. 


Oh and I love my 13xx's. Have a 1377, 1322 and a 2289 Backpacker. 
 
I got the sear kit and installed it. Here's my comments for it. With the hammer kit in the gun the sear didn't reliably hold the hammer back. Plus the sear is light weight i.e. soft aluminum. It should be steel as this is a wear item. When the sear did hold the hammer back the trigger was very light. It will probably work just fine with the factory hammer but not so with the one I have. So it was removed and the washers were still use to take up slack in the trigger.

In regards to cocking noise, I never let the handle contact the pump tube when pumping. I use my thumb against the trigger guard to limit the travel of the pump handle.
 
accuracy surprised me, the sight from new are pretty much junk, but with over 40 year old eyes it wouldn't matter if they were Millett sights. Now with a cheap scope I can shoot the gun...accuracy is VERY GOOD. I appreciate the old 1982 gun. I thought it was pretty decent back in the day but never really expected much from it and after it started leaking it was never even thought of after the Webley Vulcan showed up....which sucks for accuracy right now...well at least with scopes.

It's a fun gun to mess around with.
 
Looking at my 2 1377 pistols the one my neighbor gave me is still in the original box and has an American flag on it, it looks to be a first production series gun with the metal breach and it is in very good condition it also seems to have a better rear sight. The other one I have is the newest version with the brass bolt and shoots only pellets the older one says it shoots BB's & pellets both are .177 cal. I plan to rebuild the older one because it does not hold pressure anymore. I may have to look for the second production model so I have all three.

From the Crosman site.

Model 1377 American ClassicPneumatic, .177 cal., single shot. First variant w/manual cocking & steel breech.Pistol1977-1981

Model 1377 American ClassicPneumatic, .177 cal. pellet/BB, single shot. Second variant with plastic breech.Pistol1981-1998

Model 1377 American ClassicPneumatic, .177 cal. single shot pellet. Third variant pellet only w/brass bolt actionPistol1998-present

Mike
 
Here are some pictures I snapped with my phone. According to this: "If your Crosman airgun was manufactured after July of 1975, the first three or four digits of the serial number indicate the month and year the gun was built. For example if the first three or four digits of the serial number were 1179 or N79 then your gun was manufactured in November of 1979."

Looks like mine was made 10/78













 
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This little beauty is my Father-in-laws. Self cocking with the trap door loading port. Only needed a new pump cup and was back up and running. Sure wish I could have kept it for my collection but he was very happy to see it working again.