Another 2300KT trigger tune-ectomy

[OrbeaRider70]

Well I just tuned another customers 2300KT to make it even better.  From the factory the barrel with the front blade sight was installed turned just a tad which made shooting with iron sights a bit "gangsta" style to turn the gun sideways!

Took off the barrel to realign.  Here is the issue and not sure anyone has had this, but the screw underneath the bolt probe which uses the very tiny allen wrench on this gun was almost stripped.  It appeared the factory put that in just a tad to an angle.  I had to use a back out bit to remove it after stripping the head! 

I was able to reinstall but I am going to order extras to have on hand for such instances.  Even though it was not an negligence thing on my part, I will not have a customer's gun with a mucked up tiny set screw!

Anyone else ever had a issue with these guns?  This was my first I had seen this way to be quite honest.

In the end a very good successful trigger tune again.  I have the customers gun at 3 lb. 10.2 oz. and eliminated trigger play as well as polished the sear spring well for a smoother glide when the sear is engaged and released.

I love tuning these little pistols for sure.  Now I have to do a tune for the same customer on their Diana model 34!  Those I can do in my sleep!

[bgmcgee]

Yep those screws that Crosman uses basically suck to put it mildly.  The first time I tried to take the one out of my 2300kt it stripped out. My suggestion is don't bother with the Crosman screws . Contact accustoms and get his or look for some better 4-48 screws somewhere else.

[OrbeaRider70]

Yep those screws that Crosman uses basically suck to put it mildly.  The first time I tried to take the one out of my 2300kt it stripped out. My suggestion is don't bother with the Crosman screws . Contact accustoms and get his or look for some better 4-48 screws somewhere else.

I beat you to it my friend! 

I ordered stainless replacements and will have on hand for replacing a customers for sure now when I do a tune.  Thanks for the information though.

[breakfastchef]

Replace every single one! Hope to actually observe your work someday.

[OrbeaRider70]

Replace every single one! Hope to actually observe your work someday.

Plan to and just offer in the tune service.  These will be slotted rather than that very tiny tiny allen heads.  I love working on these little pistols for sure.  I am going to re-crown my .22 barrel because it looks a little rough.  11 degree target crown then face the barrel and hopefully make it more accurate.

Will keep you guys posted on how that works out.

[crossliner]

Had a button ss allen screw lathed. It uses a  2mm allen ( or is it a 2.5 I have to check again)  wrench big difference yes sir.




Left one is the untouched version.

[rws_53]

Yep those screws that Crosman uses basically suck to put it mildly.  The first time I tried to take the one out of my 2300kt it stripped out. My suggestion is don't bother with the Crosman screws . Contact accustoms and get his or look for some better 4-48 screws somewhere else.

I think Crosman purposely uses a small hex drive so that it strips before the threaded hole does.  Easier to replace than dealing with stripped threads in the tube for those who like to over torque.  The trick to get these screws out without stripping the hex is to put the receiver/tube in a padded vice and gently squeeze it to take pressure off the screw.  When reinstalling the screw...only use minimal pressure on the short arm of the allen wrench.

[sshewins]

I bought a mini plastic clamp from harbor frieght. Small enough to loose, but strong enough to squeeze breech to tube to take some pressure off screw.

[rws_53]

Yep those screws that Crosman uses basically suck to put it mildly.  The first time I tried to take the one out of my 2300kt it stripped out. My suggestion is don't bother with the Crosman screws . Contact accustoms and get his or look for some better 4-48 screws somewhere else.

I think Crosman purposely uses a small hex drive so that it strips before the threaded hole does.  Easier to replace than dealing with stripped threads in the tube for those who like to over torque.  The trick to get these screws out without stripping the hex is to put the receiver/tube in a padded vice and gently squeeze it to take pressure off the screw.  When reinstalling the screw...only use minimal pressure on the short arm of the allen wrench.

I bought a mini plastic clamp from harbor frieght. Small enough to loose, but strong enough to squeeze breech to tube to take some pressure off screw.

If I had known about clamping the breech/tube I would have gotten the screw out with the allen wrench

And if you do strip/round the hex out here are some ideas I have come across to get it out....which I used to get mine out.

Clamp the breech/tube to take pressure off the screw.
1. Use a small torx bit (one that is slightly larger than the rounded out hex and has to be forced into the rounded out hex)... the flutes of the bit act as an easy out.  If that doesn't work move onto #2.
2. Use a 7/32 left hand drill bit. I didn't have a small torx so I went with this option and it backed right out. If that doesn't work move onto #3.
3. Use the 7/32 bit and drill down to the shank of the screw...the head should pop off so you can remove the breech then use vice grips to grab the screw shank and turn it out of the tube.