So how do I use the target range?

Hint 1 of 9:

Take a buff colored 13.5.1 form

Hint 2 of 9:

and hand it to Bert.

Hint 3 of 9:

Pay for the practice session.

Hint 4 of 9:

Use your wallet on Bert.

Hint 5 of 9:

Take the ammo and head gear.

Hint 6 of 9:

Go to the right to the firing range.

Hint 7 of 9:

Put on the head gear.

Hint 8 of 9:

Aim and fire.