Thread: 260 load, transition 140gr AMAX to ELD

Due to the discontinuation of the 140gr AMAX I'm having to get a new load for my 260 using the new 140gr ELD-Ms.
The AMAX shot really well out of my rifle and I was hoping I could just do my exact same reload but using the new bullet.

What I ended up doing was using brand new Lapua brass, a different primer and the new bullet, but used the same seating depth and charge of 2209.
I've attached a picture of two groups from each load,
The AMAXs were 3 shot groups (only had 6 rounds left) groups were .540" at 120yards and .270", under .5moa is the norm for this load.
The ELD-Ms were 4 shot groups, first was 1.150" and the second 0.780"
As you can see my shooting got better as the session went along (could've been due to having thoroughly cleaning my barrel).

Wanting to get some feedback on what my next step should be with the ELD-Ms.
Should I keep the charge the same and try different seating depths?
Or should I try changing the charge weight?
Was thinking of playing with the seating depth first, the rifle is a Tikka T3 and the rounds are loaded to mag length, will be happy to but the longer bolt stop and buy a longer magazine if the projectiles like being closer to the lands.

Cheers