Wolverine .25 B-Lite New 24" Barrel

[Nutcracker]

Just put the 23 /3/4 " L/W barrel on the Wolverine. The factory one is 17".




It is about a 100 out here today, so I just shot a few strings over the chronograph. I will mess with hammer throw after I get a chance to see how accurate it is , or is not going to be.

23" 33 grain MKII 17" 25 grain King 23" 25 grain King. All started at 3400 psi. Same Hammer Throw.
1.837 914 961
2.837 917 959
3.841 920 966
4.849 918 966
5.850 923 983
6.858 925 982
7.868 924 980
8.866 926 984
9.878 924 986 (3100)
10.876 917 991
11.885 921 989
12.877 921 987
13.889 (3000) 916 987
14.883 918 (3000) 988
15.883 920 990
16.889 916 984
17.888 913 984
18.888 913 984
19.891 911 984 (2800)
20.902 910 983
21.902 908 976
22.901(2800) 904 973
23.903 903 (2700) 971
24.894 900 968
26.899 900 968
27.893 895 964
28.891 896 962
29.890 896 958
30.891 894 955 (2500)
31.883 888
32.880 885
33.876 884
35.879 (2400) 879
36.875 876
37.872
38.872
39.868
40. 864

 

[chasdicapua]

Curious why the shot count was lower with the Kings in the 24" barrel as compared to the 17" barrel.

Hope the barrel is a winner. 

 

[Nutcracker]

I just stopped shooting @ 955 fps..was getting hot outside...The 17" barrel is accurate as heck. I just want to see how fast this thing will shoot and still maintain accuracy. The longer barrel was the easiest way. Where ever it shoots the most accurate, that is where I will leave it. If it is down in the 920s, I will just go back to the 17". I am hoping it will be accurate in the 980s in 25 grain. Looks like with the 24" barrel I have gained about 70 fps over the 17" w/25 grains. But that might increase even more when I start playing with the hammer throw.

 

[Nutcracker]

Here is a 5 shot group today 25 grain jsb @990 fps 53 yards. . Just under 3/8" ctc. Hope this is not a fluke. Did not get much time to shoot had guest all day, shot these near dark. If I can keep them around 1/2" at this speed, will be very happy. Very loud, no shroud.

 

[chasdicapua]

Is this for hunting as well at target shooting, or just target shooting?

 

[Nutcracker]

Some plinking/target shooting, but mostly tree squirrels. Hope to get it tuned for longer range, late in the year when no leaves are on.

 

[Nutcracker]

Here is a 50 shot string I just shot. Starting @ 3500 psi ending @ 2200 (25 gr jsb)
894 924 935 944 948 953 955 948 966 966(3250) 976 974 978 979 981 985 976 988 982 988 (3000) 989 986 981 982 980 975 976 976 975 975 (2800) 980 975 970 969 960 963 960 957 953 947(2500) 950 948 942 938 936 936 930 925 917 916(2200)

 

[chasdicapua]

Those are screaming, and still accurate. That's a nice 5 shot group you had there. 

 

[StormSunny]

Wasn't the factory barrel good enough?

 

[Nutcracker]

Yeah,same make L/W, this one just gives me more power & 50 shots above 900 fps. My groups are less than 1/2 " @ 50 yards with it as well.

 

[Nutcracker]

While I was getting some real good groups with the above speeds, I seem to get too many flyers. so I shortened the hammer throw, I think 3 turns. Here is a string 3500 psi fill. 25 grain jsb.
775 783 791 802 810 814 820 825 826 836 (3250) 840 817 843 847 844 858 856 863 867 875 (3100) 873 880 881 893 898 906 898 916 915 931 (2900) 927 929 929 938 941 943 944 945 944 940 (2650) 948 942 940 940 936 937 937 934 935 929 (2400) 931 929 929 920 911 916 908 905 899 900 (2100).

I am going to install this regulator, it is set at 170bar Hope to see an improvement. Will be a couple weeks before I have days off again.

 

[Guest]

It would seem the 900fps starts at 3000psi and ends at 2000psi. You might want to try the regulator at 150bar with a bit more hammer spring tension for a starting point. You should still get your 900fps+/- and a great shot count.

 

[Nutcracker]

Thanks John, I will try that . I never put a regulator on a rifle yet, so I am all in for solid advice.

 

[JWilson]

Nutcracker,

Aligning the gauge and fill port can be a challenge. Get a sheet of 2000 grit sandpaper. You can easily polish the nylon washer that you will place between the reg body and the action if required. Go soft and slow. Use silicon grease. No need to torque past hand tight if you size the washer well.

I hope you have enough volume of regulated air to keep the velocity in your desired range. The .25 will require a tad more air than the .22. I think the regulated volume will be the same on either. I topped out at 33 ftlb on my .22 but dialed it back to right at 30. Your transfer port is bigger and the 170 Bar regulated pressure will help as mine is right at 150 Bar. I am very interested in how this turns out. If your velocity drops, consider making a spacer tube to place between the regulator and action. That would allow a larger volume of regulated air to be available for the shot.

keep us informed. I may need a barrel.

 

[Nutcracker]

JWilson, thanks for the tips. I was not sure where that nylon spacer was suppose to go. I won't get a chance to install for a couple weeks. Will keep you posted.

 

[JWilson]

So how did it work out? 

 

[Nutcracker]

JWilson, I have not been home much in the last month. Hope to put the reg. on this weekend or next week. Will let you know what happens.

 

[Nutcracker]

Ok, finally got home & have some time. I put the reg on, filled it to 3000 psi fired twice to make sure everything was functioning. Filled to 3500 psi, left sit for 20 minutes. Fired this 40 shots. Never changed anything & same tin of 25 grain jsbs. What do you think?

 

[JWilson]

I like that you still got the 900 fps on that regulated volume. Try decreasing hammer throw length till you see the fps drop. No way should shot count decrease. 

 

[Nutcracker]

I want to shoot it for accuracy before I mess with it anymore. Hopefully it will be a lil more accurate now, not that it was bad before.