Re: 260 Rem Vs. 6.5-06
A lot of people have posted to this title and I hope you won't mind if I add my two cents worth. I don't own a .260 Remington, but have seen a a couple perform, one at a long range class at Whittington to 1,280 yards. I was amazed at how well it did at that really long distance. I used a 6.5 x 284 for that class and have owned a 6.5 Remington magnum as a light mountain rifle since the mid 1970's. I am familiar with the .264 Winchester magnum and am aware that even larger cases than that are necked down to 6.5, but the reason for this escapes me in terms of the incredibly small gain in velocity to be gained and the incredible erosion you receive at the throat. Of course if your gunsmith's name is "DAD" and you don't mind setting a barrel back every 4-500 rounds this might not seem to be too much of a problem.
Everyone knows in HI-Power shooting that barrel life of a 6.5-284 is 1,000-1,100 rounds. That's it! Any larger case equals more throat erosion, some have radically worn out throats which equals poor accuracy and a rather substantial amount of reduced velocity. If your not worried about reduced velocity with this size bullet (120 to 160) then it might be time to rethink you priorities. The 6.5's work very well with 140 grain bullets which requirea 1-8 twist, also . When you take a .284 case and realize that you only have 1,000 rounds of useful accurate barrel life in 6.5, but use that same case in its full size, .284, and gain a huge increase in useable life of that chambering, it should be obvious that case capacity is the max for all practical purposes for the 6.5. Anything larger, plan on talking to "DAD" more often, if your an active shooter.
I do believe if your case capacity is larger and you prefer to use a larger case you would be much better with a larger, heavier bullet (7mm, .30 or .338). While I could hit the 1,280 yard target with my 6.5 x 284 the unarguable difference between the impact of a 140 grain bullet at that distance and a 180 from a .300 Ultra was almost laughable in terms of how vigorously that steel plate reacted when hit with the .30 caliber, heavier bullet moving at higher velocity.'
So, even though I do not own a .260 rifle I am impressed with the performance for its size and almost certainly a 6.5-06 is almost overrbore already for this size a bullet.
Thank you for your attention in this matter.