A few years ago I tried to buy a Crown when they updated the MK1 to 4 barrel hold down screws but after a three month wait I canceled that order and bought a Dreamline Classic in .25. The DL is a good rifle and I have it shooting 33.95gr pellets accurately with 60fpe. I’m 75 years old now and changing over to .177 because I am restricted to my home range and I like the challenges of the .177 pellets. My range is setup to a maximum of 90 yards.
Nine months ago I put a 600mm .177 barrel in my Impact MK2 PP and was impressed with it’s accuracy (despite all the negative comments on the FX .177 barrels). Was going to buy a .177 conversion for the DL but noticed UA had a special on the Crown MK2 VP so I bought the Crown. Received my FX Crown VP .177 on 7 Jan 23 from UA. Had UA install a picatinny rail to stock. I installed Saber Tactical picatinny to ARCA rail adapter. Also installed Saber Tactical bottle mounted picatinny rail. Mounted Optisan EVX 5-20x50i scope in Eagle Vision adjustable scope rings.
The crown came out of the box setup as follows:
Regulator Pressure ~98 BAR (Gauge needle just below 100 BAR)
Hammer Wheel 23
Valve Wheel Medium
Altitude 7027 ft
Temp 46*
Barometer 23.13 inHg
Pellet JSB 10.34gr
Shot count: 13
Low: 895
Hi: 930
Avg: 913
Spread: 35
STD Dev: 11.1
Best configuration I found after testing with just hammer wheel changes is as follows:
Regulator Pressure ~98 BAR
Hammer Wheel 14 (change)
Valve Wheel Medium
Altitude 7027 ft
Temp 50*
Barometer 22.94 inHg
Pellet JSB 10.34gr
Shot count: 10
Low: 868
Hi: 877
Avg: 871
Spread: 9
STD Dev: 3.5
Because of snow and cold I couldn’t setup scope and test accuracy.
Changed the scope rings and fitted a K&L KLS-M butt plate for a better ergonomic fit. Had a window to get the Crown on the bench (enough snow melt to get on the bench and to get a target on 30 yard target stand). Six - five shot groups averaged 0.48” (measured from outside of most distanced pellet holes) with one group at 0.32”. For me this is great accuracy as I’m the limiting factor in a rifles accuracy (and I was cold).
Next I will be testing 13.43gr and 16.2gr pellets as weather allows (snow expected over the next 2 days).