I have look at all the forums I can find on here and I still have some questions. Is there any pros and cons of these two? What grain bullets do these rounds like and how much powder to get the same velocity? The max velocity I will go from 28 to 2900 fps I am looking at getting a 24in barrel. What kind of barrel life are these rounds getting? Can you load to the lands while useing a mag? Is there a pro to the small rifle primer vs large primers? LOL well thats all I can think of for now any help will be very helpful. Thank you