I have been running a heavy dose of R22 in my swede for a bit but due to the temp stability I decided to try Staball6.5. Results thus far are impressive. Your mileage may very and if you go this route start low and work up. I know the limits of this rifle. This was my 1st run and while the best two groups were at the lower end of the loads I plan to work around the 48.0 +- area to see if I can find a node. Would have been nice to run 5 shot groups but just wasn't practical for this run.
Rifle:
Tikka Action
24” Proof Barrel
Q Cherry Bomb Muzzle Brake
Omega 300 Suppressor
Ammo:
Lapua New Brass
CCI 200 Primers
Hornady 143 ELD-X Bullet
Weather:
79F
98% Humidity
30.12’ Pressure
500’ Elevation
Overall Average group including 1 single flier .566
Group 1: 46.0 Grains
2731 – Cold barrel fresh out of the air conditioned vehicle
2772
2753
Avg 2752
SD 16.8
Group Size .288”
Group 2: 46.5 Grains
2794
2777
2798
Avg 2790
SD 9.2
Group Size .2595”
Group 3: 47.0 Grains
2843
2833
2830
Avg 2835
SD 5.6
Group Size .9565 (pulled one)
Group 4: 47.5 Grains
2850
2883
2864
Avg 2866
SD 13.5
Group Size .595
Group 5: 48.0 Grains
2915
2903
2919
Avg 2912
SD 6.5
Group Size .578
Group 6: 48.5 Grains
2941
2937
2941
Avg 2940
SD 1.9
Group Size .721
Velocity recorded though an Athlon Rangecraft Chrono.
No pressure signs at all through 48.5 grains. Based on my calculations 49.0 to 50.0 should start to show signs as pressure should be getting above the 62k psi mark. Honestly I don’t see much of a reason going above 48.5. The swede continues to impress me with what it can do. I hope this information helps some of you Swede fanatics or someone trying the Swede out. Remember work up on your load development and do not take this information as truth for you rifle.
Rifle:
Tikka Action
24” Proof Barrel
Q Cherry Bomb Muzzle Brake
Omega 300 Suppressor
Ammo:
Lapua New Brass
CCI 200 Primers
Hornady 143 ELD-X Bullet
Weather:
79F
98% Humidity
30.12’ Pressure
500’ Elevation
Overall Average group including 1 single flier .566
Group 1: 46.0 Grains
2731 – Cold barrel fresh out of the air conditioned vehicle
2772
2753
Avg 2752
SD 16.8
Group Size .288”
Group 2: 46.5 Grains
2794
2777
2798
Avg 2790
SD 9.2
Group Size .2595”
Group 3: 47.0 Grains
2843
2833
2830
Avg 2835
SD 5.6
Group Size .9565 (pulled one)
Group 4: 47.5 Grains
2850
2883
2864
Avg 2866
SD 13.5
Group Size .595
Group 5: 48.0 Grains
2915
2903
2919
Avg 2912
SD 6.5
Group Size .578
Group 6: 48.5 Grains
2941
2937
2941
Avg 2940
SD 1.9
Group Size .721
Velocity recorded though an Athlon Rangecraft Chrono.
No pressure signs at all through 48.5 grains. Based on my calculations 49.0 to 50.0 should start to show signs as pressure should be getting above the 62k psi mark. Honestly I don’t see much of a reason going above 48.5. The swede continues to impress me with what it can do. I hope this information helps some of you Swede fanatics or someone trying the Swede out. Remember work up on your load development and do not take this information as truth for you rifle.
