Swift A-frame

[lunchbox]

30-06 165gr swift a-frame bullet
I bought some to try in the 30-06 and noticed that the bullet itself has a ring around it. Is that where I should push the bullet to in the case?
This is what I have done to figure out where to seat the bullet so far.
I took a bullet and colored the bottom part under the line with black marker, then I bairly set the bullet in the fired case and put it in the rifle and chambered the round. (With the rifle pushin the bullet into the case mouth it ejected and I measured that as a 3.299in. The nosler reloading manual says max is 3.340in.
from where the bullet is sitting right now to where the top of the ring is is another .132in.
just dont wanna mess anything up and hurt myself.
Thanks for the help
Lunchbox

[mountainam]

Lunchbox, The best thing to do is make a phone call to Swift and talk to their engineers. They will have guidelines and other info to follow. Who better to ask than the guys that made the bullet?

[ricksalisbury01]

Just a couple things,

Make sure the rifle is very clean, before you try and measure how long the case to ogive length is (bottom of the case were the primer goes in-to were the bullet diameter transitions to .308in). If there is carbon build-up in the throat and build-up before were the rifling starts you will get an overall reduction in max length.

If in fact you’re Swift A-frame bullets contact the rifling at 3.299in, back off the length by .020in for the A-frame bullets. On a positive side, this would mean that your bullets should fit just fine in your magazine.

Provided the rifle is NOT an auto-loader, there should be no need to crimp the case to the bullet. Do not worry about the “ring.”
You might find that after you Full-Length size the fire brass and TRIM it to length; you might be much closer to the cannelure (ring).

One additional note of caution, make sure that you test a full-length sized case in your rifle to make sure it will chamber.

AH-HA!....just thought of something………if you were using a once fired brass that you have not sized, then your bolt is probably a little stiff when you close it on your rifle. The brass shoulder has been moved forward when case fire-formed to your chamber. Resize your brass, and then make your dummy round to measure your length to the rifling. I take a piece of resized brass, use a sander or dremel to remove the case extraction rim, and cut the case neck like a cross down to the shoulder. This allows me to squeeze the neck to hold the bullet with tension. By cutting/sanding off the extraction ring, the bolt will not pull the bullet out and lengthen your OAL. Use a cleaning rod to “push” out the dummy round. Take a few measurements, and average the distance.
Hope that helps……that said, as you are new to reloading….try your loads more than a few times before you go shooting at a bear, and try a few loads that you are going to hunt with!

[wilmsmeyer]

What is the difference between a Nosler Partition and the A-frame?

[lunchbox]

3.316 is what I got for the nosler.

[mike3132]

Jul 7, 2011 5:01:16 GMT -5 wilmsmeyer said:

What is the difference between a Nosler Partition and the A-frame?

Companies. Mike

[tcmech]

I think you have received some pretty good advice from both Mman and Rick both. I have tried doing the same thing in the past for a couple of different rifles, and the best piece of advice I got from one of my friends was to use a flat based bullet turned around to point into the case to measure the actual length of the chamber to the lands.

[rossman40]

The Nosler Partition is designed to give up the nose easier so you have more fragments. The nose on the Swift is bonded, not as large and the jacket is thicker so you get more "controlled" expansion. A-Frame on the left,

[billc]

I would suggest you purchase an OAL (over all length) gage with the associated cartridge.