This bullet does not feature any driving bands. The Shank of the bullet from the base of the bullet to the approximate cannelure position is bullet diameter and then steps down in a diameter reduction that appears to about .010 per side. As I had no micrometer to measure this I could not confirm the actual diameter. Exhaustive wet lap penetration test have proven to Bill that the Break Away delivers extremely deep and consistent in-line performance. These bullets have already been used in the field on just under a dozen Elephant and Buffalo with predictable results. I have been told that approximately 1000 of these have been sold to clients and Professional Hunters to date and I'm sure more field data will begin the trickle in from the veld as the 2015 Safari season unfolds.
The Break Away Solid is an expensive bullet to make and the retail price reflect Swifts efforts to bring it to market. Mr. Hober says that regulating the Break Away to shoot into the same point of impact as the A-Frame has been very easy with the rifles used for testing to date. Having said this the Break Away will not be for everyone but I do believe it will soon become a familiar subject around a Mopani fire ring like the legendary A-Frame and round out the Swift product line completely. I will use and test these bullets in an up and coming 450 Rigby Magnum Classic I have begun and will report my finding as they become available. As usual the Swift Bullet Company is not sitting on its laurels.