Here is a good read.
You are correct that .357 may have double the velocity. If they are out of 4 inch + barrels. 2 inch not so much. The stuff you read on ammo boxes is tested for "standard" pistols. .357 and .38 are usually standard at 4 inch barrels. it's basic physics. Cut the barrel, lose some velocity. There are some ammos that can perform well at 2 inch barrels but still have way more recoil and muzzle flash, neither of which are optimal in a shootout.
Read up. <broken link removed>
You are correct that .357 may have double the velocity. If they are out of 4 inch + barrels. 2 inch not so much. The stuff you read on ammo boxes is tested for "standard" pistols. .357 and .38 are usually standard at 4 inch barrels. it's basic physics. Cut the barrel, lose some velocity. There are some ammos that can perform well at 2 inch barrels but still have way more recoil and muzzle flash, neither of which are optimal in a shootout.
Read up. <broken link removed>