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Thread: 1377 backpacker clone

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  1. #1
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    My 1377 "mini-carbine" is based on a 2009 version. Just the Crosman steel breech, shoulder stock and 4x32 scope. Left on standard barrel as it's only for short range use at home. Pellet on pellet accuracy. Love it. Wouldn't mind building a longer barrelled higher power version, but always been a little hesitant due to pistol origins....some say it's okay, some say, "once a pistol, always a pistol".

    Always also fancied trying a flat top piston, mainly for the efficiency but also because the rod part is more heavy duty?

    JB, what tubing do you normally use to ensure better TP sealing?
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  2. #2
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    I see you've also discovered how accurate these are as carbines.

    Just by Adding a 14.5 inch .22 Ratcatcher barrel makes a big difference in power. Then you can use the Ratcatcher in summer and Back Packer in winter.



    Having said that a 1377 at short ranges is effective too. The only issue I have with flat top pistons is that the orings seem to wear very quickly, the standard cup holds up much better.





    Quote Originally Posted by TonyL View Post
    My 1377 "mini-carbine" is based on a 2009 version. Just the Crosman steel breech, shoulder stock and 4x32 scope. Left on standard barrel as it's only for short range use at home. Pellet on pellet accuracy. Love it. Wouldn't mind building a longer barrelled higher power version, but always been a little hesitant due to pistol origins....some say it's okay, some say, "once a pistol, always a pistol".

    Always also fancied trying a flat top piston, mainly for the efficiency but also because the rod part is more heavy duty?

    JB, what tubing do you normally use to ensure better TP sealing?

  3. #3
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    some one suggest fitting the later hidden screw breech -to fit it you'll need to drill and tap the tube for the screw as 13xx tubes are only threaded for the normal front screw breech
    for a FTP o ring James i use a hnbr o ring on my uk kits though i do have some quad rings that i sent to mate in Can who likes them ,he has his PAL and shoots his backpacker at power above our limit and i think hits targets out to 100yds with it

  4. #4
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    Nice solution Ped I'll have to get some of those.

  5. #5
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    Quote Originally Posted by ratbuster2240 View Post
    I see you've also discovered how accurate these are as carbines.

    Just by Adding a 14.5 inch .22 Ratcatcher barrel makes a big difference in power. Then you can use the Ratcatcher in summer and Back Packer in winter.



    Having said that a 1377 at short ranges is effective too. The only issue I have with flat top pistons is that the orings seem to wear very quickly, the standard cup holds up much better.

    I "mini-carbined" my 1377 back in 2009 and my first 2240 in about 2011. You're right. That 1377 is so, so accurate. As you'll be aware, you have to do your bit.....short barrel, totally standard trigger, very light weight and slippery-in-the-shoulder stock punishes even the slightest lapse in technique. Like a 1" flyer at 10 yards. However, get "in the zone" and get everything just right and it will print 5mm edge to edge groups at 10 yards. Yes, really.

    I also have a 2240 and 1377 totally standard. But like to have one in standard guise. I'd love to build a longer barrelled 1377 based carbine, too. Or, maybe, a 2250 with steel breech but convert to .177. Once things get back to some sort of normality I ought to look at selling my least favourite gun (a Mercury) and embark on another Crosman mini-carbine project.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
    NEXT EVENT :- August 3/4, 2024.........BOING!!

  6. #6
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    Quote Originally Posted by TonyL View Post
    I "mini-carbined" my 1377 back in 2009 and my first 2240 in about 2011. You're right. That 1377 is so, so accurate. As you'll be aware, you have to do your bit.....short barrel, totally standard trigger, very light weight and slippery-in-the-shoulder stock punishes even the slightest lapse in technique. Like a 1" flyer at 10 yards. However, get "in the zone" and get everything just right and it will print 5mm edge to edge groups at 10 yards. Yes, really.

    I also have a 2240 and 1377 totally standard. But like to have one in standard guise. I'd love to build a longer barrelled 1377 based carbine, too. Or, maybe, a 2250 with steel breech but convert to .177. Once things get back to some sort of normality I ought to look at selling my least favourite gun (a Mercury) and embark on another Crosman mini-carbine project.
    Change the front pump arm stock for a black one tony. Look much better matched up. Id post pics of my two if i was not a computer illiterate numpty. Chris

  7. #7
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    Quote Originally Posted by WILBA View Post
    Change the front pump arm stock for a black one tony. Look much better matched up. Id post pics of my two if i was not a computer illiterate numpty. Chris
    Very good point, Chris.. Might well do at some point.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
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  8. #8
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    Quote Originally Posted by TonyL View Post
    Very good point, Chris.. Might well do at some point.
    Have my new type one i took off you can have if you want it tony. Chris

  9. #9
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    Quote Originally Posted by WILBA View Post
    Have my new type one i took off you can have if you want it tony. Chris
    Blimey!. Are you sure? If it's a straight fit then that's be a "yes, please" and thank you.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
    NEXT EVENT :- August 3/4, 2024.........BOING!!

  10. #10
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    keeping a standard one stops you from having a mad moment and selling one you've spent so many hours on. It takes a while to get them just how you like.

  11. #11
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    Quote Originally Posted by ratbuster2240 View Post
    keeping a standard one stops you from having a mad moment and selling one you've spent so many hours on. It takes a while to get them just how you like.
    Both my backpacker and its clone one are just fun plinking toys to be fair. But they are fun to use for short plinking sessions

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