6.5CM 144 Rangemax

[afm122]

Hi All - newer shooter & reloader - looking for recipes for the 144 Lapua Rangemax 6.5CM ideally using H4350.

Looking on the Lapua website - they only show powder charges for V555 which I don't currently have and since I have H4350 on hand was trying to find load data for this powder so was looking at the Berger 144 as a close alternative. However when looking at the load data there is a large disparity between the Berger 144 vs the Lapua 144 when using V555 so I'm really confused.

I've done some searching online already and of course AI is giving me some suggestions - so have some guidelines I can look to follow, but hoping someone on here might be using these and has a recipe they would share.

Thanks!

 

[Markymark130]

41 grains H4350 gets me consistent 5 shot 3/8" group at 100 yards and a SD under 5. Loaded 2 thou off the lands in Lapua brass CCI 450 Magnum gets me 2796 average velocity.

 

[afm122]

41 grains H4350 gets me consistent 5 shot 3/8" group at 100 yards and a SD under 5. Loaded 2 thou off the lands in Lapua brass CCI 450 Magnum gets me 2796 average velocity.

Thanks for the info!! Assume that's out of a 26" barrel?

 

[Markymark130]

Ya, 26" IBI. There's a good accuracy node for many 140-144 grain bullets in the 41- 41.5 grain. Work your way up.

 

[afm122]

Ya, 26" IBI. There's a good accuracy node for many 140-144 grain bullets in the 41- 41.5 grain. Work your way up.

Great - will look to load some up as suggested and work up if needed for the accuracy node. Perfect...thanks again!