Is the Disco breech and bolt same for both 177 and 22?

[wahoowad]

Just curious if the breech and bolt are the same whether you have a 177 or 22 Disco?

[grumpy]

Yup they are.

Dave

[ezman604]

I believe the breech is the same but takes a different probe or bolt for each caliber.
Happy Shooting!!!!
Dave
 

[grumpy]

Barrel an bolt should be all thats needed to change calibers.

Dave

[wahoowad]

So....the bolt pushes the pellet past the lead-in and hopefully up against the rifling in the barrel, correct?

Is the lead-in (which many tuners polish) part of the breech end of the barrel, or is it part of the breech itself? Any link or pics that show this?

[rsterne]

The breeches are the same, but the bolts (and bolt O-ring) are different.... The leade is part of the barrel, not the breech....

Bob

[TimmyMac1]

Factory no. Different probe and Oring. The Mac1 probe is the same for both calibers but I use a 004 oring for the .177 and a 005 for a .22 so the bolt will shut tight and not move when you fire.