30-06 safe min lenght

[silaic7]

I trimmed my 30-06 too short. I know that the min length should be 2.484 but for some reason when I measured it they are coming up as 2.474 probably wrong setting on my trimmer. But are those short (2.474) still usable? planning to use it on my M1 garand.

[hermosabeach]

I would load a few to see how they shoot

Neck tension has a lot of impact on accuracy.

[Divernhunter]

They will work fine. Just no need to trim as soon as others again

[JagerDog]

What divernhunter said

[pacrat]

They will work fine. Just no need to trim as soon as others again

What divernhunter said

Make that 3 for GTG.

[fguffey]

I trimmed my 30-06 too short. I know that the min length should be 2.484 but for some reason when I measured it they are coming up as 2.474 probably wrong setting on my trimmer. But are those short (2.474) still usable? planning to use it on my M1 Garand

.

Most information that covers reloading is fragmented; when discussing one caliber with another reloaders do not believe one set of rules will not apply to another caliber. And then they do not have a rational for the difference.

they claim 2.473 is not too short, at the same time there is nothing they can do when forming 338/06 and or 35 Whelen cases from 30/06 cases. After forming the 30/06 to 338/06 or 35 Whelen the case length from the end of the neck to the case head is .035" shorter meaning the case length after forming is 2.459".

I am the fan of covering all of the chamber with the case, I do not want a gap between the end of neck to the beginning of the cone.

X-dies, RCBS suggest trimming the length of the case .020" shorter than maximum case length. Point? When it is time to trim the case it is time to start over on more cases.

F. Guffey

[fguffey]

And then? There are 3 different maximum overall lengths.

F. Guffey

[JagerDog]

Well that clears that up.

[hambam105]

Pacrat knows reloading. If it were me I wouldn't doubt his reloading 30-06 advise.

I reform 30-06 cases to 7.65X53mm, so I've never seen a '06 trimmed case that was too short for me.

[freonr22]

I would load a few to see how they shoot

Neck tension has a lot of impact on accuracy.

How many neck tensions, should there be?

[JagerDog]

How many neck tensions, should there be?

Obviously you need to add 0.3 additional tensions if your case is 0.020" under nominal. For nominal, I've found 3.73 tensions works for me in my rifle. YTMV

[fguffey]

How many neck tensions, should there be?

For the answer to that question it will be necessary to find a reloader that knows what he is doing. I do not know of a member that understands how to convert tensions to pounds.

I would like to help, I am the only reloader with a tension gage; problem, my tension gage is not marked off in tensions and reloaders do not have a conversion for tensions to pounds.

F. Guffey

[J-cat]

Tensions cannot simply be converted to pounds. The relationship between the neck and the bullet is complicated by several variables.

[JagerDog]

Tensions cannot simply be converted to pounds. The relationship between the neck and the bullet is complicated by several variables.

That's why I stick to measuring in tensions. Otherwise it's like trying to convert CUP to PSI.