.308 A-Frames / 165gr and .30-06

[PHOENIX PHIL]

Working with the M70 .30-06 Super Grade I picked up here on AH last year. I did a little work with it and 165/180gr bullets, but none were A-Frames. I seated them all to SAAMI length of 3.34".

While in Dallas I struck gold and snagged two boxes of A-Frames in 165gr weight. I'm quite certain it's not the rifle or me, but I had to seat the bullets to 3.24" to get them to feed. It's not the first time I've had bullets that had to be seated a bit shorter than SAAMI, but a full 0.1" seems a lot.

Anyone else run into the same?

 

[BnC 04]

Working with the M70 .30-06 Super Grade I picked up here on AH last year. I did a little work with it and 165/180gr bullets, but none were A-Frames. I seated them all to SAAMI length of 3.34".

While in Dallas I struck gold and snagged two boxes of A-Frames in 165gr weight. I'm quite certain it's not the rifle or me, but I had to seat the bullets to 3.24" to get them to feed. It's not the first time I've had bullets that had to be seated a bit shorter than SAAMI, but a full 0.1" seems a lot.

Anyone else run into the same?

Phil, i am under listed col on several of my rifles for the exact reason you have mentioned. Havent noticed an issue in doing so thus far.

 

[YancyW]

Working with the M70 .30-06 Super Grade I picked up here on AH last year. I did a little work with it and 165/180gr bullets, but none were A-Frames. I seated them all to SAAMI length of 3.34".

While in Dallas I struck gold and snagged two boxes of A-Frames in 165gr weight. I'm quite certain it's not the rifle or me, but I had to seat the bullets to 3.24" to get them to feed. It's not the first time I've had bullets that had to be seated a bit shorter than SAAMI, but a full 0.1" seems a lot.

Anyone else run into the same?

When I read though this the first time and read it as .01 and I couldn't figure out why it would matter, now I see it is .1, I have idea why that happen.

 

[shootist~]

@PHOENIX PHIL

Are you sure your specific chamber (throat) is actually long enough to seat the 165 gr A-Frames to 3.340" COL?

My 180 grain A-Frames would be jammed .050" into the lands at that length. My COL is 3.240" and I'm .050" off of just touching. This is in a 30-06 Tikka, btw.

I assume the 165 and 180 A-Frames have a similar shape at the nose (neither very pointed). I've only loaded the 165s in a .308, but IIRC they shot best seated ~ .050 off the lands as well.

 

[PHOENIX PHIL]

@PHOENIX PHIL

Are you sure your specific chamber (throat) is actually long enough to seat the 165 gr A-Frames to 3.340" COL?

My 180 grain A-Frames would be jammed .050" into the lands at that length. My COL is 3.240" and I'm .050" off of just touching. This is in a 30-06 Tikka, btw.

I assume the 165 and 180 A-Frames have a similar shape at the nose (neither very pointed). I've only loaded the 165s in a .308, but IIRC they shot best seated ~ .050 off the lands as well.

Wjat I know is 165 Nosler BTs can be seated at 3.34” at minimum. I haven’t tried to go longer with those. I believe also North Forks in same weight can also be seated at that length.

The A-Frames were still a little tight at 3.25” and fine open/closing of bolt at 3.24”

If I end up with an accurate load at a good velocity, well no problem I’ll take it. It just seemed I had to back out from SAAMI a bit much.