Question on forming Brass

Dan Morris · August 24, 2002, 05:35 PM

After rearanging loading bench and sorting brass, I find mass quantities of 06.......kinda short on .270........thinking of making several hundred into 270.
Any tricks I should know before I try this project? Gonna be using RCBS dies.
Dan

**Mike Irwin** · August 24, 2002, 05:37 PM

Lubricate the necks well. Probably the best thing to use is a dry lube like Hornady's OneShot.

Neck reaming or turning might be a good idea, too.

Gewehr98 · August 24, 2002, 06:17 PM

.270 is longer than .30-06.

.270 = 2.540" long, 2.156" to shoulder.

.30-06 = 2.494" long, 2.108" to shoulder.

Shoulder can be blown forward with a "false shoulder" to maintain headspace during first firing.

The 5/100" difference in neck length may be made up partially by necking down the .30-06 to .270, otherwise you'll just have to seat out the bullets a little farther to make up for the shorter brass.

cheygriz · August 24, 2002, 07:16 PM

Gewehr's points are well taken! However, the .30-06 brass will work just fine. Lube the necks well. I like Dillon spray lube, but anything with plenty of lubricity will work. Leave a small false shoulder, fire form with a light load, and then outside turn or ream the necks.

I've done hundreds of them, not only to .270, but to .25-06 as well. STP works well for lubing necks, but it's a real bitch to clean off after you're done.

Dan Morris · August 24, 2002, 09:51 PM

Gracias... I've got mucho brass and am to cheap to throw it!
AKA... brass Rat
Dan

Shoney · August 24, 2002, 11:40 PM

To avoid prblems when doing any forming, use Imperial Sizing Die Wax. In over 40 years of loading, I haven't found anything that equals it.

Shoney

Dan Morris · August 25, 2002, 12:16 AM

Thanks for the advise.....Shoney, didn't you used to be in Florida?
Dano

KP95DAO · August 25, 2002, 08:47 AM

98,

Sorry, just too many things incorrect with your post.
There is no difference between the headspace datum line of the 30-06 and the 270 Win. Therefore there is no need to "blow the shoulder forward."
While the cases will be shorter than normal that does not mean you have to "seat the bullets out farther to make up for the shorter brass." The rounds will still be the same overall length. The only real impact will be if you are wanting to crimp in a crimping groove. This will result in a shorter than normal round.
I have done this necking down many times as have thousands of others. Neck down, trim to square the case mouth, chamfer and deburr, and go on about your business.

Gewehr98 · August 25, 2002, 09:31 AM

I meant the distance to the shoulder/neck junction between the two comparative rounds - using Frank DeHaas' data. You're right, the shoulder length is the same, as is the datum line.

When I resized .30-06 down to 6.5-06, I did so incrementally to create a false shoulder on the neck. I still do so years later when I make 6.5-06 from 7x64 Brenneke. Not because the numbers said it was needed, but because I dodn't trust that the shoulder of the rifle's chamber that originally fired the .30-06 brass was in the same place as my own 6.5-06. That may be on the extreme side of anal, but I also use a Stoney Point Bullet Comparator and OAL gauge.

But I still maintain that the C.O.L. of a loaded .270 Winchester round is considerably longer than the C.O.L. of a loaded .30-06 Springfield round. (Winchester did that for a reason...) If he seats the .270 bullets to their cannelure in the reformed .30-06 brass, which is what I was referring to, he will have some bullet jump to the barrel throat, hence my mentioning he should seat them out.

Then there's those who would argue that the missing 4-5/100" of case neck is an accuracy problem waiting to happen. But they're the folks over on xtremeaccuracy.com...

August 24, 2002, 05:35 PM	#1
Dan Morris Senior Member Join Date: March 7, 2001 Location: Littleton, Colorado Posts: 342	Question on forming Brass After rearanging loading bench and sorting brass, I find mass quantities of 06.......kinda short on .270........thinking of making several hundred into 270. Any tricks I should know before I try this project? Gonna be using RCBS dies. Dan

August 24, 2002, 05:37 PM	#2
Mike Irwin Staff Join Date: April 14, 2000 Location: Northern Virginia Posts: 41,642	Lubricate the necks well. Probably the best thing to use is a dry lube like Hornady's OneShot. Neck reaming or turning might be a good idea, too. __________________ "The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza Baby Jesus cries when the fat redneck doesn't have military-grade firepower.

August 24, 2002, 06:17 PM	#3
Gewehr98 Senior Member Join Date: July 1, 2000 Location: Token Creek, WI Posts: 4,067	Short necks... .270 is longer than .30-06. .270 = 2.540" long, 2.156" to shoulder. .30-06 = 2.494" long, 2.108" to shoulder. Shoulder can be blown forward with a "false shoulder" to maintain headspace during first firing. The 5/100" difference in neck length may be made up partially by necking down the .30-06 to .270, otherwise you'll just have to seat out the bullets a little farther to make up for the shorter brass.

August 25, 2002, 08:47 AM	#8
KP95DAO Senior Member Join Date: December 30, 2000 Posts: 699	Say what, 98? 98, Sorry, just too many things incorrect with your post. There is no difference between the headspace datum line of the 30-06 and the 270 Win. Therefore there is no need to "blow the shoulder forward." While the cases will be shorter than normal that does not mean you have to "seat the bullets out farther to make up for the shorter brass." The rounds will still be the same overall length. The only real impact will be if you are wanting to crimp in a crimping groove. This will result in a shorter than normal round. I have done this necking down many times as have thousands of others. Neck down, trim to square the case mouth, chamfer and deburr, and go on about your business.

August 25, 2002, 09:31 AM	#9
Gewehr98 Senior Member Join Date: July 1, 2000 Location: Token Creek, WI Posts: 4,067	Sorry, KP95DAO... I meant the distance to the shoulder/neck junction between the two comparative rounds - using Frank DeHaas' data. You're right, the shoulder length is the same, as is the datum line. When I resized .30-06 down to 6.5-06, I did so incrementally to create a false shoulder on the neck. I still do so years later when I make 6.5-06 from 7x64 Brenneke. Not because the numbers said it was needed, but because I dodn't trust that the shoulder of the rifle's chamber that originally fired the .30-06 brass was in the same place as my own 6.5-06. That may be on the extreme side of anal, but I also use a Stoney Point Bullet Comparator and OAL gauge. But I still maintain that the C.O.L. of a loaded .270 Winchester round is considerably longer than the C.O.L. of a loaded .30-06 Springfield round. (Winchester did that for a reason...) If he seats the .270 bullets to their cannelure in the reformed .30-06 brass, which is what I was referring to, he will have some bullet jump to the barrel throat, hence my mentioning he should seat them out. Then there's those who would argue that the missing 4-5/100" of case neck is an accuracy problem waiting to happen. But they're the folks over on xtremeaccuracy.com...

August 24, 2002, 07:16 PM	#4
cheygriz Senior Member Join Date: May 11, 2002 Location: high up in the rockies Posts: 2,289	Gewehr's points are well taken! However, the .30-06 brass will work just fine. Lube the necks well. I like Dillon spray lube, but anything with plenty of lubricity will work. Leave a small false shoulder, fire form with a light load, and then outside turn or ream the necks. I've done hundreds of them, not only to .270, but to .25-06 as well. STP works well for lubing necks, but it's a real bitch to clean off after you're done.

August 24, 2002, 09:51 PM	#5
Dan Morris Senior Member Join Date: March 7, 2001 Location: Littleton, Colorado Posts: 342	Gracias... I've got mucho brass and am to cheap to throw it! AKA... brass Rat Dan

August 24, 2002, 11:40 PM	#6
Shoney Senior Member Join Date: February 21, 2002 Location: Transplanted from Montana Posts: 2,311	To avoid prblems when doing any forming, use Imperial Sizing Die Wax. In over 40 years of loading, I haven't found anything that equals it. Shoney

August 25, 2002, 12:16 AM	#7
Dan Morris Senior Member Join Date: March 7, 2001 Location: Littleton, Colorado Posts: 342	Thanks for the advise.....Shoney, didn't you used to be in Florida? Dano