123 Amax accuracy issues

[molar]

2.280 seems kind of long. Does that fit in the magazine?

Yes. ASC mags will accomodate an OAL of 2.290". That is about .045" off the lands in my rifle

[SG4247]

Here is my final load series using H335 and the Nosler 100 BT from my 16" Shilen with a 308 suppressor.

I stopped at 30.5 grains of H335 with the Nosler 100 BT and the 41 primer and the AA case. No presure signs at all. No flattening of the primer evident either. Bullet is really trucking at this load. No chrony data, but I know its really cooking.

Might reload it again with the 450 primer and see if groupings improve.

[molar]

Here is my final load series using H335 and the Nosler 100 BT from my 16" Shilen with a 308 suppressor.

I stopped at 30.5 grains of H335 with the Nosler 100 BT and the 41 primer and the AA case. No presure signs at all. No flattening of the primer evident either. Bullet is really trucking at this load. No chrony data, but I know its really cooking.

Might reload it again with the 450 primer and see if groupings improve.

I've never had luck with the CCI 41's as far as getting good groups. I'm using Tula or Wolf SRM primers. Believe it or not, a lot of benchresters are using them as they seem to be more consistent than most primers.

I actually went up to 30.5 gr H335 with the 100 gr BT last weekend. The faster I pushed them ,the more the groups opened up. My sweet spot is somewhere between 28.5 and 29.0 gr. Interestingly, I could not get the 120 gr BT's to shoot at all. My best group was 2" with those. I tried AR comp, CFE 223, and 8208