Thread: Rifle Double Grouping

Originally Posted by cambo

Just came across this from Howa.

To keep the temperature cool in the barrel, wait at least 5 minutes between break-in
shots. The barrel must remain cool during the break-in procedure. If the barrel is
allowed to heat up during the break-in, it will destroy the steel’s ability to develop a
home registration point, or memory. It will have a tendency to make the barrel “walk”
when it heats up in the future.

Interesting....
I can say that my barrel never got hot. Only ever fired single shots between cleaning for break in period so barrel never got even warm. Then and after that 3 shot groups with a gap of 10-15 mins between groups.
Will be taking it out for a hunt labour weekend, then I will take it to the range again to try it on sand bags instead of the bipod, and another very experienced well known shooter will have a go as well just to see if that makes a difference.
Supplier doesn't want me to take it apart or to modify it yet. Got to keep targets for them too.

Have to say that sounds like complete bollocks ...