From Munitions Engineer's Marketing Handbook, by An d'Breece, Hammer & Thong Pub., San Diego, May 2008:

Guideline # 2: A precise number has a self-validating degree of authenticity that is 30 times more effective than a nice round inflated number, especially when used with the concomitant most significant unit (smaller units imply greater precision).
For example: "Our SocketRocket™ will hit within 3.25 feet of the target" is better than "Our SocketRocket™ will hit within one meter of the target."
Even better (worth ~ 30 % markup): "Our improved UpsocketRocket© with SuperSight® targeting will hit within 39 inches of the target!"
Best (worth a solid 70% markup): "Our advanced PocketRocket® using PinPoint™ targeting and a 2 kilogram KloseKill® payload having a 41 inch 96% probability termination radius, with factory demonstrated 99% reliability at a 51% confidence level, essentially guarantees that, on the average, you will be back. This week's special: 10% discount on our three-year/three-mission Assured Survival Warrantee*—full refund of warrantee cost, less S&H, if your PinPoint™ PR doesn't live up to its promise, no questions asked.
* a.k.a. Assured Survival Success With Individualized Policy Exceptions - Better than the paper it's written on !!

© 2008. The ®, ™ and © symbols and associated marks and terms used in the above satire are the product of the author's imagination. Any resemblance to RW items or existing entities is purely coincidental. Nothing should be interpreted as expressing or depicting the policies or procedures of any corporation, institution, university, governmental department or agency, or individual other than the author who suffers from occasional debilitating bouts of CRC (Cranium Rectal Containment).