7mm Remington Magnum and 180 grn. Bergers????

[Jumpalot]

Need some help with some loads for this combo. I have H1000, H4831sc, Retumbo and RL22, Norma brass, Federal 215 and CCI 250 primers. What kind of velocity can I expect out of a 26" barrel? Thanks in advance for the help.

 

[montana_native]

FWIW,

My load in a 26.5" barrel with 68 gr of Retumbo gave me 2876 fps with Lapua Brass, CCI250's and OAL of 3.470". 69 gr was at 2910 fps but accuracy suffered. 70 gr got sticky bolt lift and groups opened up more but velocity was 2942 fps.

Keep in mind, Berger's max load for this combo is 66.4 gr and 2849 fps.

Hope this helps a bit.