Crosman 1377 .177 cal pellet gun

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stonebuster

stonebuster

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I recently picked up on of these new 1377s on sale for $34 and am very surprised by the accuracy with the stock sights and the power of this inexpensive air gun. Today with 8 pumps in a stiff breeze I put a 6" balloon out 90ft and hit it 3 for 3 using 7.4 gr pointed Premier pellets free handed(and I'm not a very good shot). I can only imagine what you could do with a scope. As soon as I can figure out where in my yard I can shoot it at 100ft without alarming the neighbors I'll try. I know they probably don't make them as well as the old 1377s but if you want to upgrade/modify you can. If you have a strong arm and don't mind all the pumping and single shot bolt operation it's a lot of fun. If I had to do all that pumping for one shot with my 357, I'd probably shoot it a lot more accurately than I do.:)
 
I've had one since around 1986 or so. Always enjoyed it, but haven't shot it in years. Yeah, it was DOB accurate. Probably still is. I like the bolt handle on the newer ones; the old ones don't have that.

Go find yourself one of the shoulder stocks for it now. ;)
 
MedWheeler said:
I've had one since around 1986 or so. Always enjoyed it, but haven't shot it in years. Yeah, it was DOB accurate. Probably still is. I like the bolt handle on the newer ones; the old ones don't have that.

Go find yourself one of the shoulder stocks for it now. ;)
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I was just looking at mods for the gun. The stock will go on for sure, maybe steel breach and some kind of optics for the dovetail. Trying to decide on scope or something else. I think that's where I'd stop. Any input on cheap optics, scope or otherwise, would be appreciated. It's obvious from my research a lot of folks are making a $35 air gun into a $300+ gun at least. You end up with a rifle/carbine by the time you get done. I bought one I'll keep stock and another to modify. My eyesight is poor, so with a scope and the stock to steady my aim, it'll be a pretty slick little gun. Then I'll probably want a longer barrel. I can see how this mod thing could get out of hand. Pretty slick of Crosman to sell you a gun for $35 that you can end up spending $300 in mods if you get carried away.
 
I have about $150 invested in my $50 1377, not counting the red dot sight. It is grim death on rodents and a hell of a lot of fun to shoot indoors. I put a steel breech on it, a better trigger and sear, trigger shims, improved pivot block, locking pivot pin and a piston that may or may not have increased the velocity. It still has the original barrel. Let's not discuss what I've invested in pellets, because that was research. Best pointless money I've spent in years!
 
AJumbo said:
I have about $150 invested in my $50 1377, not counting the red dot sight. It is grim death on rodents and a hell of a lot of fun to shoot indoors. I put a steel breech on it, a better trigger and sear, trigger shims, improved pivot block, locking pivot pin and a piston that may or may not have increased the velocity. It still has the original barrel. Let's not discuss what I've invested in pellets, because that was research. Best pointless money I've spent in years!
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What red dot sight do you have? I looked at the BSA 30mm and UTG. Reviewers seemed to say beyond 10m the dot covered the target quite a bit indicating a scope might be better for beyond 10m shooting. I want an optic for 20-25m. At 10m I'm fine with iron sights. My eyesight isn't good having a damaged left cornea so I rely on my right eye primarily. Considering that, I'm not sure if the scope or red dot would be better. Once I figure out which sight I will order the stock, steel breach and sight together to try saving some shipping cost. Any suggestions on cheap scopes that would work on 1377 with steel breach? I saw the BSA pistol scope and Center Point(Crosman) which seem to be the same and look like they need mounts which aren't included.
 
I found the fore arm grip and hand grips to be very slippery making the pumping more difficult than necessary. Rather than spend the $$ on custom grips I got some no-skid tape form Home Depot and put it on the forearm, hand grip and back strap for about 50 cents worth of tape. It makes it much easier to pump since you don't have to grip the forearm and hand grip so hard especially when pumping 8-10 times. Works so far and doesn't look too IMG_0910.JPG IMG_0914.JPG terrible.IMO
 
The problem with scoping a low velocity pellet pistol is that your max range is fairly limited by wind and drop, plus there's the fact that it's a pistol. OTOH, a scope or a red dot adds a huge parallax error at short range, where you might actually use it for pests.

Consider that a 6" balloon is about 120x bigger in surface area than what you're tying to hit if you ever need to do any pesting. The off switch on a rat or mouse is about the size of quarter. For practice for real firearms, it's just as effective to aim at smaller targets at closer range. And it's more practical in case you get unwanted visitors.

My 1377 is scoped, but the open sight 1322 is the one that gets all the tree rats. Along with the occasional carpenter bee.
 
GLOOB said:
The problem with scoping a low velocity pellet pistol is that your max range is fairly limited by wind and drop, plus there's the fact that it's a pistol. OTOH, a scope or a red dot adds a huge parallax error at short range, where you might actually use it for pests.

Consider that a 6" balloon is about 120x bigger in surface area than what you're tying to hit if you ever need to do any pesting. The off switch on a rat or mouse is about the size of quarter. For practice for real firearms, it's just as effective to aim at smaller targets at closer range. And it's more practical in case you get unwanted visitors.

My 1377 is scoped, but the open sight 1322 is the one that gets all the tree rats. Along with the occasional carpenter bee.
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Good advice. That gives me something to think about. I wanted to upgrade to the steel breach for accuracy but didn't think you could use fixed sights on it. I've got two 1377s, one to modify some and one to keep more stock.
 
^I've never missed on a rodent with iron sights. I know I have the shot or not. One shot = one stone dead rat. The one and only time I ever shot (and winged) a rat with the red dot, luckily it was caught up in a tree net. I tried to adjust for parallax, but I couldn't really remember how much to tweak it. By the time I finished loading and pumping the third shot, it had stopped moving enough that I could finally finish it an inch away. And by then, the other three had found a way out of the net (one scurrying back under my AC unit, where I had heard rats nesting).

Here I was with a fancy red dot and I ended up holding the gun sideways so I could line it up with the rat a few inches from the muzzle. I had briefly considered grabbing a knife or club out of the garage to finish it, but then I pictured the bloody mess.

After removing the red dot, the rest of my rat problem went smoothly. I knew I was done when the babies started wandering around the yard in broad daylight, blind and about as fast as molasses. Even my fat cat caught one of them.

I have never put fancy sights on this pistol, again. Although I have some LEDs on there to light up the iron sights for the nocturnal tree rats which are my main pest. In my entire life, of not living on farms, I have only ever needed to shoot pests in 2-3 pump range.
 
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GLOOB said:
^I've never missed on a rodent with iron sights. I know I have the shot or not. One shot = one stone dead rat. The one and only time I ever shot (and winged) a rat with the red dot, luckily it was caught up in a tree net. I tried to adjust for parallax, but I couldn't really remember how much to tweak it. By the time I finished loading and pumping the third shot, it had stopped moving enough that I could finally finish it an inch away. And by then, the other three had found a way out of the net (one scurrying back under my AC unit, where I had heard rats nesting).

Here I was with a fancy red dot and I ended up holding the gun sideways so I could line it up with the rat a few inches from the muzzle. I had briefly considered grabbing a knife or club out of the garage to finish it, but then I pictured the bloody mess.

After removing the red dot, the rest of my rat problem went smoothly. I knew I was done when the babies started wandering around the yard in broad daylight, blind and about as fast as molasses. Even my fat cat caught one of them.

I have never put fancy sights on this pistol, again. Although I have some LEDs on there to light up the iron sights for the nocturnal tree rats which are my main pest. In my entire life, of not living on farms, I have only ever needed to shoot pests in 2-3 pump range.
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So your 1322 has the original iron sights on it now and the plastic breach and your 1377 has steel breach with scope mounted in dovetail? What scope do you use? I guess you use the 1377 for target shooting. What range have you found the 1377 to still be accurate at? If you have a photo of the 1377 I'd like to see the setup. I don't bother with our tree rats unless they get into the attic(which they have in past). We live in the woods with hickory and oak trees all around the house so we've got a million grey squirrels. The red tail hawks and great horned owls fly off with one now and then. No rats, poison for the mice, so no shooting pests needed here. I do a lot of plinking/target shooting and got my first air gun in 55 yrs. last year. It's keeping me from making so many trips to the range which get expensive.
 
Mine a bout 20 years old and stock. Darn accurate for shooting at 25 feet in the basement. Also good for slapping the garbage squirrels and cats in the butt with 1-2 pump. I use soft spongy silicon beads so none are getting hurt. Problem SQs get a pellet to think about. I put them in the garbage. Too bad they are bigger and fatter from eating all the garbage. I need to pick up a 1322 just for the bigger slap. I have the Beeman 1073 combo 177/22 springer Wmart used to sell. Maybe a China copy but it's a great,accurate gun and hits hard. Keeps my yard pest free if needed and quiet.
 
... your 1377 has steel breach with scope mounted in dovetail? What scope do you use? I guess you use the 1377 for target shooting. What range have you found the 1377 to still be accurate at?
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Not exactly. You can buy a set of scope mounts that clamp directly to the barrel. They come in pairs, each section is only about an inch or so long, and it clamps to the barrel and has a dovetail on top. I had purchased a set for each pistol, but I ended up doubling them up on the 1377, probably more for the looks than anything. With the one-piece scope mount I used, two up front and two in back fits perfectly. I just put a 4x pistol scope on it. Simmons Prohunter 4x32.

On the surface, you might think I did this because I am cheap. But IMO, this is a better way to do it. If you examine how the barrel is attached to this gun, it's not particularly well mounted. There's only 1 single screw holding it at the rear, and just the plastic cylinder holding it at the muzzle. And I don't see any way that a drop in metal breech is going to significantly fix these issues. I'd rather the optics be fixed to the barrel than the breech.

I haven't tried very hard to find out the max range. I would guess it shoots fairly flat and accurate out to 20 or 25 yards, perhaps. I wouldn't be too surprised if you could push it farther with no wind.

edited for accuracy:
I tried a lot of pellets in both guns, and they both like Crosman Premiers. The 177 also likes Crosman Pointed. And the 1322 shoots lights out with Daisy wadcutters. All testing at 10 meters.
 
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I'm putting the plastic stock on the 1377. Would the Pro Hunter 4x32 work as far as eye relief? The cheapest price I can find for that scope is $78. Walmart has the Simmons 561022 22 mag rifle scope but it's 12.5 inches and has eye relief of 4" and it's $30. It's probably too long and eye relief might not work? Do you have the high profile scope rings? I'm going to get the steel breach kit and mount it to that. The steel breach seems to stabilize the barrel better than the plastic breach having set screws to lock the barrel to breach. Haven't shopped for a scope before so pardon all the questions.
 
stonebuster said:
I'm putting the plastic stock on the 1377. Would the Pro Hunter 4x32 work as far as eye relief? The cheapest price I can find for that scope is $78. Walmart has the Simmons 561022 22 mag rifle scope but it's 12.5 inches and has eye relief of 4" and it's $30. It's probably too long and eye relief might not work? Do you have the high profile scope rings? I'm going to get the steel breach kit and mount it to that. The steel breach seems to stabilize the barrel better than the plastic breach having set screws to lock the barrel to breach. Haven't shopped for a scope before so pardon all the questions.
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The Pro Hunter eye relief is a bit too long for this. If memory serves (I can't find my stock), it is serviceable if I mount the scope as far forward as possible, using the barrel mounted weaver rails. The problem is the scope extends way past the muzzle, and it looks pretty horrific. It you put in an extended barrel, this would look just fine, I bet. But I don't like your odds of finding a breech mount that will get you that far forward.

I think a small rifle scope will be the easier solution for you.
 
GLOOB said:
The Pro Hunter eye relief is a bit too long for this. If memory serves (I can't find my stock), it is serviceable if I mount the scope as far forward as possible, using the barrel mounted weaver rails. The problem is the scope extends way past the muzzle, and it looks pretty horrific. It you put in an extended barrel, this would look just fine, I bet. But I don't like your odds of finding a breech mount that will get you that far forward.

I think a small rifle scope will be the easier solution for you.
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Thanks for the feedback on the ProHunter I was considering.I decided on the UTG BugBuster scope 3-9x32 AO, RGB Mil-dot that comes with Picatinny/Weaver rings. It's only 5-6 inches long and paralax adjustable going down to 3 yds. It's my first scope and was $75 so I thought it was a good one to start with. I opted to buy the Cleavercraft scope mount which is a very solid mount for the 13 oz. BugBuster and mounts right over the existing plastic breach. I think that much weight would be too much for a barrel mount set up. With the stock I'm hoping the extra 13 oz. will be OK.
 
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bnolsen said:
Apparently a 14" barrel length is optimal for these and looks pretty sweet with a suppressor. You know you want to.
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If I go any farther with the mods the 14 inch barrel w/suppressor would be next. I'd do the metal barrel band instead of the plastic if I did the barrel. I put the Cleavercraft scope mount and BugBuster on today. The scope has AO feature which eliminates parallax. Thanks to the information I got here (thanks Gloob) about the parallax issue I chose a scope that you can adjust to eliminate it. I'm stopping there for a while at least and get used to the new scope and gun configuration. If you zero the scope for 30ft will it be zeroed for any other distance as well? I tried zeroing at 60 ft but was off the paper and couldn't tell what adjustments it needed and I was too lazy to grid off a bigger sighting target. IMG_0921.JPG
 
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Looks like a nice pistol/carbine. How do you like that Cleavercraft mount? Stable? I've never heard of it before.

Regarding sighting in at 30 feet and shooting at 60 feet and expecting the same zero - I'd expect the pellets to be on paper, but probably an elevation change would have to happen.

I use the little Crosman barrel mounts on my 1377 with a rimfire to weaver adapter to mount a Bushnell red dot. I had to shim the mounts at the pump tube to try and eliminate mount wobble. Even then, it can still move if you bang it around just a bit.

All I do with my 1377 is 10 to 15 yard pistol practice.

View attachment 784376
 
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chicharrones said:
Looks like a nice pistol/carbine. How do you like that Cleavercraft mount? Stable? I've never heard of it before.

Regarding sighting in at 30 feet and shooting at 60 feet and expecting the same zero - I'd expect the pellets to be on paper, but probably an elevation change would have to happen.

I use the little Crosman barrel mounts on my 1377 with a rimfire to weaver adapter to mount a Bushnell red dot. I had to shim the mounts at the pump tube to try and eliminate mount wobble. Even then, it can still move if you bang it around just a bit.

All I do with my 1377 is 10 to 15 yard pistol practice.

View attachment 784376
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I like the grips on your pistol. Where did you find them? Is the forearm grip slippery? The Cleavercraft mount is well made and uses two set screws to lock it to the barrel and the rear screw where the sight was. If there is a problem it's the plastic breach doesn't do much keep the barrel from moving slightly. The "legs" on the mount keep the barrel from twisting too much. It's as stable as it can be with a plastic breech. The scope is 13 oz. I did have to adjust the scope today while shooting from 80 ft. I was anxious to sight the scope in the other day at 60 ft. in the rain so that wasn't the greatest time to do it. I got such a kick out of the 1377 I went out and got another at Walmart for $34. I'm going to keep one a pistol so if the Cleavercraft allows too much movement for consistency I'll put a steel breech on the pistol(which will become the carbine) and mount the scope to that. The carbine would become a pistol with weaver mount and allow a red dot if I choose.
 
stonebuster said:
I like the grips on your pistol. Where did you find them? Is the forearm grip slippery?
Click to expand...

The pistol grip panels and pump grip are from my old worn out Crosman 1389 Backpacker* I bought new in the late 1980s. The pump grip has a micro-pebble finish, but parts of that finish have worn smooth with long term use.

The swing out breech seal crumbled many years ago and I never found a replacement. So, I bought the 1377 you see in my other post and moved over the 1389 green plastic in place of the 1377 brown plastic and also moved over the trigger/sear spring as the 1980s Crosman springs are lighter than 21st century springs.

The carbine stock that came with the backpacker had developed so many cracks where it mounted to the 1389, it became unusable. Not a bad thing as that Backpacker gave me maybe 15 years of service.

*Like seen in this video.
 
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stonebuster said:
The Cleavercraft mount is well made and uses two set screws to lock it to the barrel and the rear screw where the sight was. If there is a problem it's the plastic breach doesn't do much keep the barrel from moving slightly. The "legs" on the mount keep the barrel from twisting too much. It's as stable as it can be with a plastic breech. The scope is 13 oz. I did have to adjust the scope today while shooting from 80 ft. I was anxious to sight the scope in the other day at 60 ft. in the rain so that wasn't the greatest time to do it. I got such a kick out of the 1377 I went out and got another at Walmart for $34. I'm going to keep one a pistol so if the Cleavercraft allows too much movement for consistency I'll put a steel breech on the pistol(which will become the carbine) and mount the scope to that. The carbine would become a pistol with weaver mount and allow a red dot if I choose.
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Two 1377s! Nice. :cool:

Thanks for the feedback on the Cleavercraft mount. :)
 
I have the 1377 and 1322, plus a 2240 and a drawer full of parts from when I tried to "customize" my original 2240. I could not load a pellet in the steel breech. None of my Crosman pellets would fit, so I spent a small fortune trying to find .22 pellets which would fit. You still had to force them in. I also could not get the upgraded adjustable sights to hit anywhere near POA. In the end I just bought a new 2240 and left it alone. Anybody wanna buy a steel breech? No refunds.
 
chicharrones said:
Looks like a nice pistol/carbine. How do you like that Cleavercraft mount? Stable? I've never heard of it before.

Regarding sighting in at 30 feet and shooting at 60 feet and expecting the same zero - I'd expect the pellets to be on paper, but probably an elevation change would have to happen.

I use the little Crosman barrel mounts on my 1377 with a rimfire to weaver adapter to mount a Bushnell red dot. I had to shim the mounts at the pump tube to try and eliminate mount wobble. Even then, it can still move if you bang it around just a bit.

All I do with my 1377 is 10 to 15 yard pistol practice.

View attachment 784376
Click to expand...
 
The barrel mounted sight bases do have some wiggle. I have them on my 1377 with a red dot and on a Benjamin rifle with an identical red dot. I also shimmed them and I used neoprene gasket material. It cures the wiggle and doesn't mar the barrel finish. I'm surprised at how accurate both of these setups are.The pistol came with a surprisingly good trigger The Benjamin rifle has their polymer trigger and I was a bit miffed that it did. I was very surprised to find it to be a much better trigger than the metal one on the old rifle that this rifle replaced.
 
chicharrones said:
Two 1377s! Nice. :cool:

Thanks for the feedback on the Cleavercraft mount. :)
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Update on Cleavercraft mount...After putting a few hundred hundred more rounds(180 today) through the scoped 1377, the slight barrel twist the Cleavercraft allows doesn't seem to affect accuracy. If you grab the scope and try twisting it you can slightly but it springs right back. The two set screws that hold the front end of the mount to the barreI hold fast to the barrel. I tried it from 40 yds and shot a bullseye 1st shot and the next two were just outside. After about 150 shots and @750 pumps my groups were getting sloppy(more than usual) and I wondered if it was the mount. I put a target out 35ft and then 65ft to see if the scope was still zeroed. Although I"ll never be good enough to make head shots on insects with my BugBuster, the results show it's not the scope when I miss, it's me. A decent shooter could make one over top of another.
 

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