A few more general ideas

by FOG, Monday, April 15, 2013, 06:48 (4185 days ago) @ Glen

...45 ACP and beyond (LOL)

I think if I was looking for the utmost in accuracy practicably obtainable from a revolver with oversize cylinder throats, I would also consider how the cases are fitting in the cylinder chambers.

If the fit was 'sloppy', I might try only 'neck-sizing' my brass (in the fashion of the old Lyman 'Tong Tool'), or perhaps simply using a larger expander plug (maybe not so simple; I suppose it depends).

Since neck-sizing results in 'fire-formed' cases/cartridges, it might be too hard to push six in at once and thereby obviate the practical (fast) use of moon clips, but you might get around this by 'pre-seating' the cartridges in the cylinder one-at-a-time.

This worked for me around 1979 when I loaded some swaged 148-gr HBWCs upside-down in .38 Special cases using a Lyman. As you might guess, I seated the bullets so the first (last?) driving band extended into the cylinder throats of my first Combat Masterpiece (#K10689x). This combination of neck-sizing, plus seating the flange of the bullet in the cylinder throats resulted in cartridges that fit the chambers tightly enough they had to be pressed home upon loading them in the revolver. However, after this was done once or twice, it required much less effort, so moon clips might still work with similar pre-seating.

That's just the .45 ACP.

I think the neck-sizing option might also be worth trying in analagous cases.

No pun intended, of course.

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