DocRock
member
As per above, I have always understood a "brush gun" to mean a short barreled rifle chambered in a non-long range caliber. While I have heard the mistaken view that heavy bullets will "avoid" deflection, my understanding was that this misunderstanding arose from the fact that in heavy cover, shots are close range and that meant that deflections often had limited effect on terminal impact, ie a small deflection 5 yards from point of impact would have negligible effect on terminal ballistics. In New England, where shots on deer can frequently be no more than 50 yards, 18" and 20" lever guns in 357 Mag, 41 Mag, and 45 LC have been popular for this reason and the 30-30 and 35 Rem remain very popular.