Originally Posted by
robertbank
I have posted this before so for some, bear with me. 6bg6ga to determine the OAL for any bullet for any pistol try this method:
1. Using a Veneer caliper measure the length of the bullet.
2. Remove the barrel from your gun and drop just the bullet into the barrel.
3. Measure from the base of the bullet to the point where a cartridge base would lay flush with the barrel hood.
4. Add the two measurements together.
You will then have the maximum length for the cartridge using the bullet you measured. Back off a few thousandths of an inch to allow for play in your press and you should be good to go. Check to see the cartridge will load in the magazine.
The OAL length of a cartridge varies from one bullet to the next that weigh the same can vary depending on the shape of bullet. It won't vary much but it can be enough to cause problems with seating in the chamber.
Take Care
Bob