1911 mag tuning for earlier release

[Harry Bonar]

wadcutters

Sir;
A 45 a.c.p. must be "taper crimped." For any crimp to actually hold a bullet part of the bullet must protrude beyond the case mouth.
I have a chamber reamer that cuts an increased leade (distance from the case end to the rifling throat) and for lead, it works stupendously!
As has been illustrated by the diagragms on headspace he feels that a slight amount of headspace (say .002 to 006) is not only desireable but in 9X19 Hi-Powers, I've found it increases accuracy!
Even with the 200 gr. SWC., a slight amount of the bullet is beyond the case mouth and, if the throat isn't increased it will either tie the pistol up or jam - the problem is not in your magazines!
Harry B.

 

[jpsshack]

Harry,
yes, as you state, a bit of the bullet must protrude from the case mouth in order to allow a crimp. In the cast of 200SWC ammo, I have been taught that about a thumbnail's width of lead is all that there should be. any more and, as you mention, headspace becomes a problem. The issue here, however, was with the cartridge jamming well before reaching that point in the chambering process (see early on in the thread). All the same, thanks for your pointers,
-jp