I happened to notice the following warning on remington 1 1/2 primer boxes recently...... Do not use remington 1 1/2 primers in high power loads such as 357 and 40 s&w ......... serious injury and/or damage to firearms could occur ( not the exact wording, but it's close enough ). It states to use remington 5 1/2's in these cartridges. My question is, why is remington the only primer manufacturer to call for a magnum primer in the 40 s&w? All load data I have for 40 s&w calls for either CCI, winchester, or federal standard SP primers. Remington is the only company saying to use magnum primers in 40 s&w loads ....... anyone know why? Seems kinda backwards to me.