psteinmayer wrote on Mar 8^th, 2013 at 2:55am:

One thing to keep in mind is burn rate for the chosen bullet weight.  IMR 4064 is great with the 165 and even 180 grain bullets, but burns too fast for a heavier bullet like the 220 grain.  The powder would be spent before the bullet is 3/4 down the barrel, which means that 1/4 of the barrel length, the bullet is slowing before it reaches the muzzle.  Likewise, a slower burning powder like 4350 with a lighter bullet, the powder is still burning when the bullet leaves the barrel, which results in poor accuracy and performance.  Paul

Paul,

That's a very succinct and helpful explanation about a key point in reloading, particularly for cast bullets. It's a very logical and common sense statement. But we all know sense isn't as common as we would like. I appreciate the clarity of your remarks. It's a bit like coaches and sports. Different coaches can use different language to tell you the same thing, but until they use language that clicks for you, what they are saying may not be that clear.