Structurally, they are the same bullet. The only difference between the two is that the CTBST has a silver colored tip and a black, Winchester® Lubalox® coating on the exterior of the bullet. Lubalox® is an oxide based coating which reduces fouling and allows for more firings between barrel cleanings. It does not reduce friction to the point where loads may be increased, nor does it build up in the barrel as Moly coatings do. Lubalox® does not leave residue nor create a coating on the bore. Normal cleaning procedures should be used with CTBSTs.
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