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1377 Tactical Carbine

Started by pump-n-dump, February 04, 2014, 02:14:39 AM

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Crosshairs

Nice job on your build and nice shooting. I like the stock you used.
               Mike
Treat people the way you want to be treated, Life will be so much better !!!

T191032

DBO,

Just use the Search function - "Ace" springs  I posted a couple of posts on 'em, I think.
It ain't like it used to be but, eh, it's do.


BillK

#18
Nice looking shooter.  The pump arm  really makes the tactical look.  Grip is cool too.
West Michigan
Crosman Nitro Venom .22
Crosman 760 - 782 - 1077
Sheridan S S - H - E9
Benjamin NP pistol - Disco - Prod
MIC B1 .177
2300S - 2300T - 2400kt
1740 - 2240 - 2250 - 1760 - 2260 - 1701P
1322 - 1377
MK I & II

K.O.

Lead into the back of the striker for preload an dwell time...?
1322XLT(2100/13XX hybyid)750 fps @ 16 pumps w/CPHP 14.3g

MK1322(2240/13XX/MK177 hybrid) 805 fps at @ 22 pumps w/14.3g CPHP

about 5 more 13xxs
Two Daisy 953(# 31x Jan. 1985) & (Sept 2004)
2100b (with old style piston)
.25 Mrod (50fpe tune)
.177 BSA Buccaneer (on the way)

DBOdude

Everything isn't for Everybody ......

K.O.

I am using a 2100/2200 spring in my 1325 project and with a ~.125 valve I am able to dump 22 2100 pump tube pumps. About 1/3 more swept 

volume, but still not flat topped... but it is moving a 20g pellet around 630fps...   It is stronger than the 13xx spring but not as strong as the Disco

spring.
1322XLT(2100/13XX hybyid)750 fps @ 16 pumps w/CPHP 14.3g

MK1322(2240/13XX/MK177 hybrid) 805 fps at @ 22 pumps w/14.3g CPHP

about 5 more 13xxs
Two Daisy 953(# 31x Jan. 1985) & (Sept 2004)
2100b (with old style piston)
.25 Mrod (50fpe tune)
.177 BSA Buccaneer (on the way)

BigErn

Quote from: pump-n-dump on February 05, 2014, 12:02:30 AM
Thanks guys for the spring links!
Here's a couple views of that Pachmayr slip-on grip.

I really like that, I'm gonna get one for my tac build too thanks  :-*

pump-n-dump

#23
Thanks everyone for the spring advice. I'm going to stretch the OEM one to start and see how that goes, I have a spare one just in case. I'll get a disco spring on the way just to have if needed.

On another note, I've been looking to add a bipod but with the pump arm mobility and the skinny barrel, there aren't any good off the shelf solutions. So this is what I'm going to try. I found a decent bipod that clamps on/off for simplicity and had a spacer made by Robert at Gravity Machine Works to fill the gap between the barrel and bipod mount. I had him make it a bit longer than needed, as I haven't received the bipod yet, and will trim it to fit. All said and done, it's only a $36 setup which I think is very reasonable. Once I get the pieces and install them, I'll post some pics. Robert can be reached at userrb8501@aol.com if anyone is looking for some machine work. I don't know what his limits are but he made my stock adapter and I've been happy with his work thus far. Pus he's very quick. I sent him a sketch with dimensions one afternoon and the next day he had it made. I know it's a simple part but I still appreciate that kind of turn around.

DBOdude

#24
i tried using folded and stacked towels to support the front of the barrel on my DBO 2289 on my "shooting table" (i have a 24 inch barrel) and at 15ish yards the POI jumped up about 2 - 2 1/2 inches . even slight/modest pressure would change POI . i hope you don't have the same issue mounting a bipod to your barrel .
Everything isn't for Everybody ......

pump-n-dump

Quote from: DBOdude on February 06, 2014, 05:54:05 PM
i tried using folded and stacked towels to support the front of the barrel on my DBO 2289 on my "shooting table" (i have a 24 inch barrel) and at 15ish yards the POI jumped up about 2 - 2 1/2 inches . even slight/modest pressure would change POI . i hope you don't have the same issue mounting a bipod to your barrel .
Good to know DBO. I'll be mounting right in front of the barrel mount/band that's at the end of the compression tube so flex should be minimized. It's very secure but I may need to get a metal one to make it really tight.

DBOdude

sounds like a plan  :-* . i hope the swing of the pump arm allows you to place it close enough to not flex . do you have the stock plastic barrel band or a aftermarket aluminum one ?
Everything isn't for Everybody ......

pump-n-dump

Quote from: DBOdude on February 06, 2014, 08:11:04 PM
sounds like a plan  :-* . i hope the swing of the pump arm allows you to place it close enough to not flex . do you have the stock plastic barrel band or a aftermarket aluminum one ?

Stock. I think aluminum is going to be a good investment. Any suggestions?

targettgii

Get one from Michael Chavka or Greg at Bluefork. Greg is a member you can find Mr Chavka on the yellow forum http://www.network54.com/Forum/79537/
Tom

Modded 1377
Modded 2240
Modded 1322
1750 HPA pistol
Stock 2260(for now)
.22 Gen.2 Marauder
CCS 2300
Custom 1740
38 T

crossliner

Quote from: pump-n-dump on February 05, 2014, 12:02:30 AM
Thanks guys for the spring links!
Here's a couple views of that Pachmayr slip-on grip.

Nice  :-*

An there is the Mr. BigErn Hol(e)y Trigger  :-*