I'd rather lean on good bullets,gain a round in the mag and be able to chase lands,while having a repeater in my mitts..
Kreedmire,260 and 284 here...at binderless COAL max latitude.
There's simply not enough room.
If one grants 3000fps to a 147 ELD in the '284 and compares it to same moving 2700fps via Kreedmire,you're talking 230fps impact speed difference at the 1000yd line and less than 9.5" of wind drift in 10mph full value conditions.
There's 27" of wind drift difference at the 1500yd line and a "whopping" 190fps difference in impact speeds...for an extry 15grs of powder and chasing yourself outta a repeater. 'Course there isn't 300fps of difference between the chamberings either,but I'm happy to paint a "purty" peecture.(grin)
A 7-08/180 at 2600fps arrives the 1500yd line 100fps slower than the 6.5-284/147 3000fps melding and wind drift is within 6" at the same distance,in identical atmospheres. That of course,if only for conversation. Now would I point any of 'em at something,that I would not the other? Nope. Are there inherent advantages in recoil reduction,noise reduction,repeating in a repeater,low ES/SD(smaller cases arrange same),sensational brass quality,muchly increased barrel life and more FUN? Yep.
Less is soooooooo very often,that much MORE..................