Originally Posted by kennygss
The rifle in question has a SAAMI spec chamber. would I be better off ( simpler ) to use accubonds and AMAX's?
Berger's are fine, and will perform fantastically. H1000 and Retumbo work really well.
I have custom chamber with a long throat, but they both work well in a SAAMI chamber too.
My accuracy loads in my 28" tube for the 168 are 70.7 grains of H1000 with a CCI 250 in WW brass touching the lands for 3040 fps.
The next one is 71.8 grains of Retumbo with a Fed 215 in Win brass at 3100 fps.
For the 180's my H1000 load is 68.8 grains with a CCI 250 for 2930 fps.
For retumbo and a 180, my absolute max is 70 grains with a Fed 215 for 3065 fps. This load is too hot. The brass doesn't hold up, but it is a laser.
I don't know if the powders are hotter than lots before, but if I tried to stuff 72.0 grains of Retumbo with a 180, or 72.0 grains of H1000 under a 168 my action might just lock up.