2240 convert to .177



Author Topic: 2240 convert to .177  (Read 1565 times)

Offline dwk54rak

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2240 convert to .177
« on: April 03, 2012, 12:36:30 PM »
 :-\ Any reason I can't take a 2240 and convert it to a 177.  Change to steel breech and choose a barrel length?
Darrell
  • North Port Florida
QBAr 2079 by @=S+S%^$# Vision optics 4-12X50AO
 2240 Carbine custom by several people, 4x30
Webley Alecto Ultra ,177 BSA red dot
 MP 53M Baikal Iron Sights
 Crosman 1322 Carbine/2289 4X30
Benjamin  397
Crosman 1377Custom 18" barrel LPA Mim sight & fiber optic front Carbine stock
benji NP .177 with Leapers 4-16X50AOIR (Summit stock, "The Remjamin"
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Daisy 717 Target Pistol  circa 1980

Offline SAADE

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Re: 2240 convert to .177
« Reply #1 on: April 03, 2012, 12:56:12 PM »
You are halfway there already, but don't forget the bolt size, I think the .177 is diffrerent?! And maybe someone will chime in on the best transfer port size so as not to waste co2 in .177 cal?
Brian in Idaho

Airguns Owned: More Than I Need and Less Than I Want!

Offline dwk54rak

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Re: 2240 convert to .177
« Reply #2 on: April 03, 2012, 01:10:13 PM »
When you buy a 1377 steel breech from crosman it comes with a bolt. The transfer port is a good Question. If I got the same 40 shots from the 12 gram capsule I would not mind and it should make that little 177 move down the road.
Darrell
« Last Edit: April 03, 2012, 01:12:51 PM by dwk54rak »
  • North Port Florida
QBAr 2079 by @=S+S%^$# Vision optics 4-12X50AO
 2240 Carbine custom by several people, 4x30
Webley Alecto Ultra ,177 BSA red dot
 MP 53M Baikal Iron Sights
 Crosman 1322 Carbine/2289 4X30
Benjamin  397
Crosman 1377Custom 18" barrel LPA Mim sight & fiber optic front Carbine stock
benji NP .177 with Leapers 4-16X50AOIR (Summit stock, "The Remjamin"
crosman 3576W
Daisy 717 Target Pistol  circa 1980

Offline MustangMike

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Re: 2240 convert to .177
« Reply #3 on: April 03, 2012, 02:02:45 PM »
177 barrel
177 bolt
177 bolt oring

thats all you need
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Offline SAADE

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Re: 2240 convert to .177
« Reply #4 on: April 03, 2012, 02:13:47 PM »
MustangMike: Ya know, I was wondering about that as I put my 2240 together last week, I'm gonna be gettin a .177 bolt, o-ring and barrel real soon!
When you buy a 1377 steel breech from crosman it comes with a bolt. The transfer port is a good Question. If I got the same 40 shots from the 12 gram capsule I would not mind and it should make that little 177 move down the road.
Darrell

Darrell, whats your guess on the fps with .177 CP Lites? I'm thinkin 695-ish if barrel is 14" +? Also, it seems to me in PCPs and co2 guns, that .22 calibers are more "efficient" i.e. more shots per same fill? Not sure, just stuff I read here and there.
Brian in Idaho

Airguns Owned: More Than I Need and Less Than I Want!

Offline dwk54rak

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Re: 2240 convert to .177
« Reply #5 on: April 03, 2012, 02:38:09 PM »
Mustang mike I didn't think of it but I'm sure you are correct the breeches are all the same from Crosman. The bolts are all that need to be different.
Saade: I would think we should be getting over 600 fps. Don't have a chrony. I;ll be shooting 7 grain or 8 to 8,5 grain
177s. I have about 4 thousand on hand. I was thinking 14" barrel, cuse I'm sure I read on the crosman web site that 14 was the fastest barrel.
Just looked on the crosman web site the breeches are all the same, but I need a breech any how cause I'll be forced to buy another 2240 to start the build
Darrell
« Last Edit: April 03, 2012, 02:45:54 PM by dwk54rak »
  • North Port Florida
QBAr 2079 by @=S+S%^$# Vision optics 4-12X50AO
 2240 Carbine custom by several people, 4x30
Webley Alecto Ultra ,177 BSA red dot
 MP 53M Baikal Iron Sights
 Crosman 1322 Carbine/2289 4X30
Benjamin  397
Crosman 1377Custom 18" barrel LPA Mim sight & fiber optic front Carbine stock
benji NP .177 with Leapers 4-16X50AOIR (Summit stock, "The Remjamin"
crosman 3576W
Daisy 717 Target Pistol  circa 1980

Offline SAADE

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Re: 2240 convert to .177
« Reply #6 on: April 03, 2012, 02:48:54 PM »
I love it when "I'm forced to buy another 2240" ain't it great! LOL
Brian in Idaho

Airguns Owned: More Than I Need and Less Than I Want!

Offline dwk54rak

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Re: 2240 convert to .177
« Reply #7 on: April 03, 2012, 03:10:47 PM »
Saade:It's a hard life but some one has to do it.
 ;D ;D Darrell
  • North Port Florida
QBAr 2079 by @=S+S%^$# Vision optics 4-12X50AO
 2240 Carbine custom by several people, 4x30
Webley Alecto Ultra ,177 BSA red dot
 MP 53M Baikal Iron Sights
 Crosman 1322 Carbine/2289 4X30
Benjamin  397
Crosman 1377Custom 18" barrel LPA Mim sight & fiber optic front Carbine stock
benji NP .177 with Leapers 4-16X50AOIR (Summit stock, "The Remjamin"
crosman 3576W
Daisy 717 Target Pistol  circa 1980

Offline rsterne

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Re: 2240 convert to .177
« Reply #8 on: April 03, 2012, 05:06:20 PM »
The longer the barrel the more the velocity, particularly if the gun is modded at all.... The gains are smaller once you go past about 18", but still noticeable.... The choice of barrel length for a carbine becomes more a matter of compact size than performance.... 14.5" minimum or you start to lose velocity big time....

If you are leaving the gun pretty stock, you certainly don't want to go hogging out the ports in a .177.... in fact I seldom do even in highly modded guns....

Bob
Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal:
.177 Diana 34, 1750 CO2 Carbine, .177 Uber-Pumper, .22 Uber-Carbine, .25 Discovery, 2260 PCP 8-shot Carbine (Grouse Gun), 2260 PCP Rifle (37 FPE), 2560 PCP Rifle (52 FPE), .22 BAM B-26, .22 BAM B-51, Hatsan AT-4410 Long (70 FPE),
"Hayabusa" Custom PCP Project (Mk.I is .22 & .25 cal regulated; Mk.II is .224, .257, .308 & .357 unregulated; working on the Mk.III, a .410 shotgun, and .458 cal)

Offline SAADE

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Re: 2240 convert to .177
« Reply #9 on: April 03, 2012, 05:26:36 PM »
Bob, I was thinking just the opposite for the .177 conversion of the 2240, use a smaller port (I.D.) or tube for the .177?
Brian in Idaho

Airguns Owned: More Than I Need and Less Than I Want!

Offline melvin

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Re: 2240 convert to .177
« Reply #10 on: April 03, 2012, 06:44:08 PM »
Keep the breech and use a .177 probe and barrel.  The breeches are the same.

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