truck driver
Ammo Smith
- Mar 11, 2013
- 7,342
- 923
Maybe not what most of you would expect or consider but on a spring air rifle platform they don't come any bigger.
The rifle is a Diana 52 in .25 cal.
The rifle was an idea inspired by my late friend OC Bolding who at the time was a member of the Diana Works Collective air rifle forum.
The rifle was built to launch a .25 cal pellet at 850 fps.
The original pellet weight was 20-25grs.
OC was big into PCP rifles and wanted something that he wouldn't have to keep filling a scuba tank to shoot.
He got enough interest from other members to get Diana to make a special run on their Model 52 ordered thru a vender who backed the purchase.
After the guns arrived it was soon learned there was a problem since they didn't perform as planed. So there was some modification to be done by a qualified machinist and spring air rifle tuner to get them to do what was expected.
There were only 24 of these rifles made in this caliber and the one I got that was my friends is #3 of 24.
After considerable trial and error the rifle was improved and performed up to expectations.
Since you can't reload a cartridge and adjust powder charges you have to still get into the power plant and make changes to get velocity and balance everything out.
Vibrations and Harmonics play a big roll in accuracy from spring air rifles.
My rifle was built in 2013 and though 7 years doesn't sound like much the useful life of the spring can vary and 7 years can be a life time.
The rifle was held up in the USPS DC in Baltimore due to Covid which was causing staffing problems.
When I got the rifle I put a recoil less scope mount on it and put a spring air rifle 3-9 scope in the mount and bolted it on top of the rifle.
The pellets I had on hand are 25.4gr and is about right for the power plant.
While sighting in at 15yds in a 12mph cross wind I found the little scope tracked very well and to my surprise the rifle performed better then I anticipated.
The first group of 5 shots went into .5" and the second group opened up to .82" after the stick on dot fell off the target and I had to use a hole in the group to sight on.
Even so not bad for this gun and I will have to shoot it over the chrony to see what it is putting out.
Incase your wonder what is on the end of the barrel it's a sound moderator/silencer which is legal because it isn't a fire arm according to the ATF.
The rifle is a Diana 52 in .25 cal.
The rifle was an idea inspired by my late friend OC Bolding who at the time was a member of the Diana Works Collective air rifle forum.
The rifle was built to launch a .25 cal pellet at 850 fps.
The original pellet weight was 20-25grs.
OC was big into PCP rifles and wanted something that he wouldn't have to keep filling a scuba tank to shoot.
He got enough interest from other members to get Diana to make a special run on their Model 52 ordered thru a vender who backed the purchase.
After the guns arrived it was soon learned there was a problem since they didn't perform as planed. So there was some modification to be done by a qualified machinist and spring air rifle tuner to get them to do what was expected.
There were only 24 of these rifles made in this caliber and the one I got that was my friends is #3 of 24.
After considerable trial and error the rifle was improved and performed up to expectations.
Since you can't reload a cartridge and adjust powder charges you have to still get into the power plant and make changes to get velocity and balance everything out.
Vibrations and Harmonics play a big roll in accuracy from spring air rifles.
My rifle was built in 2013 and though 7 years doesn't sound like much the useful life of the spring can vary and 7 years can be a life time.
The rifle was held up in the USPS DC in Baltimore due to Covid which was causing staffing problems.
When I got the rifle I put a recoil less scope mount on it and put a spring air rifle 3-9 scope in the mount and bolted it on top of the rifle.
The pellets I had on hand are 25.4gr and is about right for the power plant.
While sighting in at 15yds in a 12mph cross wind I found the little scope tracked very well and to my surprise the rifle performed better then I anticipated.
The first group of 5 shots went into .5" and the second group opened up to .82" after the stick on dot fell off the target and I had to use a hole in the group to sight on.
Even so not bad for this gun and I will have to shoot it over the chrony to see what it is putting out.
Incase your wonder what is on the end of the barrel it's a sound moderator/silencer which is legal because it isn't a fire arm according to the ATF.
