Crimping .30-06


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Visionz45
January 21, 2010, 10:50 PM
Ive been reloading for my .30-06 w/RL22 for a while now. I'm running 62 grains behind 180 Accubond. Ive recently received some 180 swift a frames w/cannalure. Ive considered working up with these new bullets. If and IF I were to crimp the case into the cannalure would this increase pressure significantly? Ive seated my accubond at 3.350". These would be sitting more in the range of 2.210". Any other pros and cons would be appreciated, thanks.

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JimKirk
January 21, 2010, 10:58 PM
Unless the gun requires crimping, it adds inconstancies.

If you are shooting for accuracy then I would not.

Neck tension should be strong enough to hold you bullets in place.

Otherwise its up to you.

Jimmy K

Check the numbers you give as OAL, quite a bit of difference.

Ok ... reread ... I'm not sure if you would consider the Swift a bullet made for accuracy, but the older Nosler Partion were not quite as accurate as a similar regular jacket bullet.

Visionz45
January 21, 2010, 11:03 PM
I just seated one on a lighter charge and it seated at 3.215". Definitely replaces a 2 for a 3 in the first post.

ranger335v
January 21, 2010, 11:04 PM
"IF I were to crimp the case into the cannalure would this increase pressure significantly?"

No.

Crimping may or may not help acccuracy, try it.

ArchAngelCD
January 22, 2010, 03:58 AM
If you do decide to crimp your rounds I would suggest using a Lee Factory Crimp Die. Also, don't add a heavy crimp because like said above, it could cause inconsistency. I like the Lee FCD and use it on the 30-06 ammo I load for my Garand.

StretchNM
January 23, 2010, 11:30 PM
My 30-06 is a Rem 700ADL with 24" barrel. I've only crimped one particular load, and it improved accuracy over the non-crimped groups. The crimp (always with a Lee FCD) is lightly applied to a Nosler 180gr Partition, over 47.0 grains of IMR4895.

When using a FCD, it is claimed it will form its own crimp "groove" in a non-cannelured bullet. I've never tried this because it just doesn't sound right to me. I crimp just enough to add a little extra tension. It is not needed, just desired with certain loads.

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