How many rounds of ammunition in a hi power browning pistol?

Answer 1

The larger the caliber, the fewer the rounds carried in the typical hand magazine. A 9 mm generally packs 15 staggered rounds. A .45 will have 10 rounds lined up straight. Some models support extended magazines.

The Browning HP, introduced in Belgium in 1935, came with a 13 round magazine. You could hand feed one round in the chamber, giving a total pistol capacity of 14 rounds.