Post by Modski66 on May 24, 2023 21:16:35 GMT
Now I have the PPK working well, I feel the need to modify it. 😁
First up is the barrel; I decided to try the tight barrel again, but this time at the normal length, and inside a new steel outer to replace the plastic effort. Recently I read that the 22lr version of the PPK is actually made from die-cast alloy, just like the replica! So I have decided to make mine a 22lr replica, making the muzzle the same by using an offcut of a 0.22 barrel to form the muzzle end so it shows some real rifling.
To get some performance data, I took chronograph readings with steel bb's and Blasters with the original barrel, and shot a target with each, then repeated the exercise with the new barrel.
What I got was different to my expectations, the new barrel showed a reduced fps with both ammo types, but the accuracy with steel bb's was VASTLY improved. However, the Blasters which were excellent to start with, showed a slight deterioration! 🤔
These are the pictures of the barrel and the targets.
I only shot at 7 feet for convenience and to establish a group size.
The new barrel will be blued eventually.
First up is the barrel; I decided to try the tight barrel again, but this time at the normal length, and inside a new steel outer to replace the plastic effort. Recently I read that the 22lr version of the PPK is actually made from die-cast alloy, just like the replica! So I have decided to make mine a 22lr replica, making the muzzle the same by using an offcut of a 0.22 barrel to form the muzzle end so it shows some real rifling.
To get some performance data, I took chronograph readings with steel bb's and Blasters with the original barrel, and shot a target with each, then repeated the exercise with the new barrel.
What I got was different to my expectations, the new barrel showed a reduced fps with both ammo types, but the accuracy with steel bb's was VASTLY improved. However, the Blasters which were excellent to start with, showed a slight deterioration! 🤔
These are the pictures of the barrel and the targets.
I only shot at 7 feet for convenience and to establish a group size.
The new barrel will be blued eventually.
