This question is not answerable as Browning made dozens of different bolts.
It is a bolt action rifle.
IIRC, you can get a manual on line at Browning's web site
IIRC, you can get a manual on line at Browning's web site
No
Browning does not make an A bolt shotgun, they sell an A bolty rifle
your browning T-bolt was made in 1967.
No
Let a gunsmith do it.
Your Browning T bolt was made in the year 1971.
Needs to be examined by a gunsmith.
Try the Browning A-Bolt, they're supposed to be pretty decent.
Browning does not publish accuracy standards.