why not a .264 wm

[stomp442]

Wow how did we get to efficient cartridge to not efficient to dam I want one of those ,6.5 RUM lol

Stomp442 an Robinhood how can shooting once to get what you want a 6.5-06 how is that efficient ?



I guess I don't understand your question it's early. If you are talking about fire forming it's really no different than any other new gun. Chances are when you get a new barrel regardless of the caliber you do a little break in right. Well, when owning an ackley you break in and fire form at the same time. Kill two birds with one stone and every time you clean you can fire form a few more to foul the barrel back in. Another great thing is you can get great accuracy when fire forming as well and are able to hunt or even target shoot with the parent cartridge. I was fouling in my .260 Ackley and fire forming last weekend and I was able to put 10 rounds in less than 4 inches at 500 meters. The other thing I mean about efficiency is the fact that my 6.5-06AI achieves 3100+ fps using 59 grains of powder and 140gr bullets, the .264WM will be up around 65-67 grains of powder to achieve those velocities.

[scope eye]

Correct me if I am wrong, but I am pretty sure the 6.5X55 Swede is the most efficient of the 6.5s

Dean

[Luke45]

Correct me if I am wrong, but I am pretty sure the 6.5X55 Swede is the most efficient of the 6.5s

Dean
^^^ agreed. between 2950-3000 fps with 45-48 gr of powder and a 140 amax for me. eat turds creedmore crowd ;)

[scope eye]

Speer use to make some 87gr HPs that were .263 Dia instead of .264, I wish I could get my hands on some more, but they have not made them in a long time.

Dean

[keeki]

Geo metro got 52 miles per gallon, but only had 55 horsepower. Just depends on what kind of performance ya want. Just sayin

[Hotolds442]

Speer use to make some 87gr HPs that were .263 Dia instead of .264, I wish I could get my hands on some more, but they have not made them in a long time.

Dean
Prvi Partisan makes some .263 diameter bullets, I've got some 139's in that diameter.

[stomp442]

Correct me if I am wrong, but I am pretty sure the 6.5X55 Swede is the most efficient of the 6.5s

Dean

Never said the 6.5-06AI was the most efficient just that it was more so than the .264WM with nearly identical performance. My personal favorite is the .260Ackley which gives me 2940 fps with only 42.0gr of H4350.

[scope eye]

I was not mentioning it towards you in particular, I was just pointing that out as a contribution to this ongoing thread.

Dean

[jjgomez]

Stomp442 I understood what you were sayin I was just trying to make a joke. Sorry if I came across that way I should've posted my question more clear.i always wanted an ai cartridge but just haven't done it yet I was looking at a 243 Ai with 1-8 twist but went with 257weatherby instead absolutely love that gun,also have 7rem mag an 300 win mag , all of my magnums are all the same so I use same primers an same powders for all it just seams easier that way for me.

I also have an 98mauser action that I may do a 6.5x55 but that has been put back on shelf for now
But I agree with keeki if you want horse power you pay for it .

Thanks for the replies keep them coming . I haven't been this anxious to read a gun forum in a while ......lol
Thanks james

[6.5Nut]

Thanks for the load data . tried today-outstanding -consistently at .5" , one group .38 . I can't shoot any better than that.