I am working on making some items for the Benjamin Akela such as a Hajimoto Strip Stak Pak as well as a barrel band. Where I need some feedback is it has been my experience with the two Akela's I own that distance between the bottom of the barrel shroud and the top of the pressure tube is not consistent.
I do not necessarily think the two need to be parallel in order for the PCP to shoot well. The only critical alignment is the receiver/barrel to optical rail being parallel. If the pressure tube is on a descending angle of 1°, who cares, except when I'm trying to use that pressure tube as an anchor point for the barrel shroud.
The inconsistent gap I see between the shroud and the tube could be the barrel or it could be the tube so to help me narrow down any barrel issues I respectfully request your help with the following information:
My thought is If there is too much variance between Akelas a nominal distance would need to be adopted and I can produce one based on that nominal distance as long as the optic still has plenty of turret or the shooter is using adjustable height scope rings there will not be an issue.
My concern is if like my Akela, you have a 1/8" to 3/16" difference from front to rear because the pressure tube is drooping or the barrel is rising, and it is inconsistent from Akela to Akela, the barrel band may introduce too much of a barrel POI change to be compensated for in the optic.
Thank you in advance guys and gals!
I do not necessarily think the two need to be parallel in order for the PCP to shoot well. The only critical alignment is the receiver/barrel to optical rail being parallel. If the pressure tube is on a descending angle of 1°, who cares, except when I'm trying to use that pressure tube as an anchor point for the barrel shroud.
The inconsistent gap I see between the shroud and the tube could be the barrel or it could be the tube so to help me narrow down any barrel issues I respectfully request your help with the following information:
- Have you had issues with getting your optic to be optically centered?
- Has your scope reached maximum elevation to overcome barrel droop or rise?
- Can you share two photos of your Akela one showing the rear distance and one showing the front distance, like the two examples I have provided?
My thought is If there is too much variance between Akelas a nominal distance would need to be adopted and I can produce one based on that nominal distance as long as the optic still has plenty of turret or the shooter is using adjustable height scope rings there will not be an issue.
My concern is if like my Akela, you have a 1/8" to 3/16" difference from front to rear because the pressure tube is drooping or the barrel is rising, and it is inconsistent from Akela to Akela, the barrel band may introduce too much of a barrel POI change to be compensated for in the optic.
Thank you in advance guys and gals!