Tuning 1377/1322

[Bulletbob]

Last summer I found a 1377 laying beside the road. The grips and the forearm where in bad shape so I made some new ones and then I layed the gun up on the shelf.

Then I see on Youtube there is almost cult culture on these things.

So I make a stock,Add a 18 inch barrel, scope mounts and scope. I have left it stock in side.

So I have questions. Are there any folks here that fool with these things?

It seem like all the work on the inside only make modest gains in FPS. What if any internal mods are worth the effort?

Thanks

God Bless

Bobby

 

[Odoyle]

Flat top piston is the single most gain them open up the TP a little but probably not much more gain. Valve mods too probably minimal.

 

[Long_Gun_Dallas]

Short stroke and low volume make it difficult to make power.

Best to just scrap the whole pump arm

 

[Odoyle]

THAT LOOKS EXPENSIVE!!!

 

[Long_Gun_Dallas]

THAT LOOKS EXPENSIVE!!!

lol, more like unobtainable. 2240 airtube and pinned valve is wayyyy more sensible, and economical

 

[AlaskaAirgunner]

I just picked up a 1322 on an amazon black friday deal and looking into the same thing. I am going to be ordering a flat top piston kit and some other goodies from Mellon Air unless someone knows of a better setup

 

[AlaskaAirgunner]

Where can I get a lothar walther barrel for a 1322?

 

[Long_Gun_Dallas]

Been trying to order one from Crosman for about 8 months. No dice. Theyre hoarding them all for custom shop guns. You may be able to find one on ebay or alliance hobby, but will be paying over double what they should cost.



One thing to keep in mind, they tend to have very tight chokes..... accuracy is supreme, but you will likely lose some FPS

 

[tuffykohler]

Get the trigger assembly upgrade from Crosman for $37. Call 'em.

 

[Long_Gun_Dallas]

Get the trigger assembly upgrade from Crosman for $37. Call 'em.

He'll need a custom hammer to run that.

 

[tuffykohler]

I don't run custom hammer...

2 upgraded assemblies on a 1377 and a 1322.

 

[Long_Gun_Dallas]

I don't run custom hammer...

2 upgraded assemblies on a 1377 and a 1322.

You're talking about the marauder trigger group, correct? Ohhhh right. You can cock the gun if you hold the trigger down

 

[tuffykohler]

Yes, that's the one. I figured I was missing something.

I don't have to pull the trigger, just release the spring tension. Not ideal I know, it's become second nature loading these this way now.