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Clark · December 30, 2013, 10:36 AM

Most people talk about better seating dies to get more concentrically.

But even the best seating dies can rub bullets the wrong way.

That is because ever bullet is shaped differently.

Often I take the seating stem out, put it in a chuck, spin it, and rub sand paper on it to get the shape and smoothness I want.

I have not done it, but others have glass bedded the bullet, with release agent, to the bottom of the seating stem, while the die is assembled. That dedicates the seating stem to that one bullet shape.

Other things to consider are:
Are the case mouths flared?
Could you lube the bullet or case mouth?
Is the neck inside diameter too small?
Did you cast the bullets from pure Lead?

December 30, 2013, 10:36 AM	#13
Clark Senior Member Join Date: December 4, 1999 Location: WA, the ever blue state Posts: 4,678	Most people talk about better seating dies to get more concentrically. But even the best seating dies can rub bullets the wrong way. That is because ever bullet is shaped differently. Often I take the seating stem out, put it in a chuck, spin it, and rub sand paper on it to get the shape and smoothness I want. I have not done it, but others have glass bedded the bullet, with release agent, to the bottom of the seating stem, while the die is assembled. That dedicates the seating stem to that one bullet shape. Other things to consider are: Are the case mouths flared? Could you lube the bullet or case mouth? Is the neck inside diameter too small? Did you cast the bullets from pure Lead? __________________ The word 'forum" does not mean "not criticizing books." "Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist. Are we a nation of competing ideas, or a nation of forced conformity of thought?