Moly coated bullets have several advantages. They reduce friction in the barrel along with copper fouling so you can go longer without cleaning (that may be improtant in a long match). You typically have to load several grains of powder more to get back to max pressure which usually improve velocity performance. Load data for moly coated bullets can not
be used for non-moly coated bullets. The moly actually gets deposited on your barrel as the bullet travels down the bore. It will take several shots to coat the barrel the first time and after cleaning. A shooting buddy likes to use moly in his target rifle because he feels he gets more consistent, albeit lower, neck tension. I used moly coated bullets in my mini-14 before.
However, after studying it further I chose not to use moly coated bullets in my other rifles for the following reason.
- It adds one more variable to the loading process that you have to control.
- Once you start using moly coated bullets in a gun, you can not switch back to non-moly bullets until the barrel is cleaned of the moly.
- It takes a lot of cleaning to get the moly completely out of the bore to obtain consistent results from non-moly bullets. Then how could I be sure it was all gone.
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