Not true chap. If you're using 150 grains powder with a powerbelt, they'll do fine if your target it 130-140+ yards away. Ive done that a few times and dropped them. They just dont perform to good on these 30-50 yard range shots. Who in their right mind would even think of needing 150 grain loads for that distance? lol. Like i said, 80 grains of powder with any powerbelt is going to drop them well within easy tracking range.
You have all seen what my 80 grain charge and 225 grain aerotip powerbelt does on deer. I'll take them over anything else out there.