To those interested in Canadian made barrel tuner, I recently had a chance to play a bit with Chou brothers Spearhead barrel tuner.
I was surprised how quick and easy it was shrink my group size. In about 1/2 revolution I found a 2 promising nodes.
I had a new barrel changed in my Surgeon rifle in 6.5 CM and not having a time to develop new load I went to the range with left over ammo that was developed for my old barrel.
First group, at zero setting. Not too promising (to be fair I am a bit rusty and rifle is being shoot from bench to from prone as I am used to)
Second 3 shot group, at +2 setting, better but still nothing special.
Third group, at +4 setting, now we getting somewhere.
Here is a whole progression, as you can see somewhere between +4 and +6 seems to be a sweet spot with groups starting to open at +8. Over all I am a very happy with this tuner, once set, you can adjust it with your hand, with enough friction that it will not move on recoil or during transport. One thing I will change is to highlight engravings, I was shooting in very bright light and reflections from SS made it very hard to read graduations.
In conclusion if you are looking for a way to make you rifle shoot more accurately with factory ammo or to squeeze this last bit of performance from your custom handloaded ammo you may give it a try.
I was surprised how quick and easy it was shrink my group size. In about 1/2 revolution I found a 2 promising nodes.
I had a new barrel changed in my Surgeon rifle in 6.5 CM and not having a time to develop new load I went to the range with left over ammo that was developed for my old barrel.
First group, at zero setting. Not too promising (to be fair I am a bit rusty and rifle is being shoot from bench to from prone as I am used to)
Second 3 shot group, at +2 setting, better but still nothing special.
Third group, at +4 setting, now we getting somewhere.
Here is a whole progression, as you can see somewhere between +4 and +6 seems to be a sweet spot with groups starting to open at +8. Over all I am a very happy with this tuner, once set, you can adjust it with your hand, with enough friction that it will not move on recoil or during transport. One thing I will change is to highlight engravings, I was shooting in very bright light and reflections from SS made it very hard to read graduations.
In conclusion if you are looking for a way to make you rifle shoot more accurately with factory ammo or to squeeze this last bit of performance from your custom handloaded ammo you may give it a try.
