The techinque works but "proper" breathing is only necessary in slow fire. These ain't sniper rifles. For more common and especially multiple engagements complete the trigger press at the first acceptable sight picture. Waiting for the perfect sight picture and "proper" breathing may result in a second place finish on a two-way range.
-- Chuck
Thats why the same FM recommends this breath pattern for short exposure targets:
The OP asked about breathing techniques, that's what we gave him. I hope he does not plan on using his 15-22 on a two-way range.
"Proper" breathing is only one of the 4 basic fundamentals (per FM 3-22.9):
- Steady Position
- Aiming
- Breath Control
- Trigger Squeeze
They are fundamental, which means that they are required (all 4 applied correctly) when you are trying to consistently hit where you are
aiming. Per FM 3-22.9, under Trigger Squeeze - "
The firer should never try to quickly squeeze the trigger while the sight is on the target."
At 300-400yds with open sights, you won't be successful unless you apply these fundamentals, even for multiple engagements. Granted, the closer you are to your target (i.e. in a room where you just kicked the door in) these fundamentals become less important. But close in, you are pointing the weapon, not necessarily
aiming, since aiming takes time you ain't got.
But this is what the Army says, which does not make it necessarily correct or right for everyone under all situations. They don't necessarily own the market on being right.
I would highly encourage any new shooter (...new enough to be asking about proper breathing techniques) to first learn the "fundamentals" and not discourage them from considering any one of them non-important because they are not using a "sniper rifle". They apply to all non-area target weapons that have a trigger and a sight system. Too many new shooters try to emulate what they play on Call of Duty and make a bad name for us all when they actually get a real weapon on a live range.
...Just my 2 cents.