09-14-2017, 02:41 AM
'Recessed' just means the all-important inside diameter (ID) is recessed/protected by a diameter that's further forward in barrel length.
A 'target crown' refers to two things;
1. Protecting the all-important ID from getting damaged through accidents and abuse.
2. Providing an obstruction-free passage for gasses that blow past the bullet as it exits the barrel.
11-degrees (from the right angle) is a standard target crown. This can be achieved by machining and angle of 11 degrees (A), or stepping into the crown so a line drawn between the ID and the step is 11 degrees (B).
A.
[ATTACH=CONFIG]9749[/ATTACH]
B.
[ATTACH=CONFIG]9748[/ATTACH]
A 'target crown' refers to two things;
1. Protecting the all-important ID from getting damaged through accidents and abuse.
2. Providing an obstruction-free passage for gasses that blow past the bullet as it exits the barrel.
11-degrees (from the right angle) is a standard target crown. This can be achieved by machining and angle of 11 degrees (A), or stepping into the crown so a line drawn between the ID and the step is 11 degrees (B).
A.
[ATTACH=CONFIG]9749[/ATTACH]
B.
[ATTACH=CONFIG]9748[/ATTACH]