Anyone have a good load worked up for AI AXMC .338 Lapua?

[Nemain]

Just getting back into shooting LR again. I used to run VV N170 powder with exceptional results on my TRG 42's but I am not sure if they even make it now. It appears to have been replaced by N570?
Anyway, I want to try and run 250 grain Scenars, Lapua Brass, Federal GMM Primers but I am not sure on the powder, I am thinking N570. Any thoughts? I am new to this rifle as well so any suggestions would be appreciated.
Also, I have noticed that Federal has come out with Gold Medal ammo for the .338 Lapua, has anyone tried any of it? Anyone know the component breakdown? I was curious if they are using Federal brass and what kind of powder.

 

[I Am Hero]

If I am not mistaken, Federal is using Lapua brass but I will have to check again to be sure. I have some of their FGMM 300 gr SMK ammo and it's awesome. A slight warning, it doesn't fit in a standard 3.715 magazine because it is loaded too long at the factory. They definitely did some load development on this round. I press in in a few hundredths of an inch so it fits in my magazine and the stuff shoots lights out all day long.

Not sure what the breakdown is on it. I personally use Retumbo powder with great results. I have used H1000 as well but definitely most favorable results with Retumbo so far.

 

[Dogtown]

H1000 and Retumbo are definitely more popular and good for a wide variety of bullets in .338LM. If you try pushing the 300gr bullets, then consider N570 or RL33 as they will get you more velocity than the other powders before hitting pressure limits.

 

[Nemain]

Ok, I will give the Retumbo a try and see what happens. Thank you.
I sounds like the Federal Gold Medal loaded ammo is pretty long OAL, thats weird...I just checked some factory loaded Lapua ammo w/250 gr Scenars and it measures 3.600" OAL. Just for reference my AI magazines measure ~3.83" inside