Too much crimp on this 6.5x55 round?
- Thread starter Bear2000
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ole farmerbuck
Member
My opinion is yes, its too much from what i see. But....i'm no expert.
longdayjake
Member
Why are you crimping them? Are they going through a semi auto? Are you just trying to get more pressure? Deform the bullet? 6.5 caliber rounds should not need crimping since almost all are designed for high accuracy and crimping is going to change the bullet a little.
NCsmitty
Member
I do not crimp my 6.5x55 loads, even if the bullet has a cannelure. There is no need, IMO.
That should be a good, fairly stiff load, especially if you're using a Swede Mauser.
NCsmitty
That should be a good, fairly stiff load, especially if you're using a Swede Mauser.
NCsmitty
USSR
Member
Agree - No need to crimp the 6.5x55.
Don
Don
Well, these will be going through the Mauser, but I am considering crimping for my hunting rifle (Tikka T3). Last season I did have a cartridge come apart on me in the field.
Also, I was reading a fairly in-depth test of crimped rounds vs. uncrimped, and the verdict was that crimped were slightly more accurate. I thought I'd see for myself.
Also, I was reading a fairly in-depth test of crimped rounds vs. uncrimped, and the verdict was that crimped were slightly more accurate. I thought I'd see for myself.
flipajig
Member
The only thing that i crimp are my lever guns and handgun rds depending on what rd depends on what crimp eather a roll crimp or a taper crimp..
Sport45
Member
Sounds to me like you don't have enough case neck tension. Crimping really doesn't help that. How much bullet do you have in the neck? I suggest having at least 1 caliber for hunting ammo. Leave the " seating to the lands" for your benchrest loads.
I don't crimp at all for my M1, AR, or Arisaka.
Clark
Member
I crimped some 6.5x55 ammo 10 years ago, and I have been sorry ever since. It still sits here un fired.
R.W.Dale
Member
Not so fast
other folks could be crimping 6.5x55 for the same reason I crimped 6.5swede.......
To be fed to the SEMIAUTOMATIC ag42-b , a rifle that's extremely hard on cartridges being fed into the chamber
Either way I for one would love to see the outcome of the OP's crimp vs noncrimped test
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I will put the crimped rounds through the Tikka, which will be able to handle the additional pressure, and see if there's any difference in group size. But I'm convinced - these are the first and probably last five rounds I'll crimp. I wonder if I just wrecked five new Lapua cases!
longdayjake
Member
Probably didnt ruin them. After firing they will expand and you can trim them down to normal specs again. Crimping doesnt usually hurt the brass too bad.
rcmodel
Member in memoriam
Then you have an over-size expander button, or an over-size sizing die.
Neck tension alone should make it totally impossible for a round to come apart without a bullet puller.
rc
R.W.Dale
Member
You have a Ljungman? SWEET!
Saw a fello shooting one at the range one day. Instant love.
I HAD one
in the end she prooved too fickle a mistress (oiled ammo & undersized American brass) and was too expendable when I broke my arm (motorcycle) so she got sold off
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