Originally Posted by Scribley
Here is some data from loads I worked up 2 weeks ago in my M70 Classic Stainless for a reference.

Barnes 250gn TTSX / Reloader 15 / Fed215 / Nosler Brass / NO crimp

73.5gn - avg 2695fps

74.5gn - avg 2745fps

75.5gn - avg 2785fps

76.5gn - avg 2801fps

77gn - avg 2833fps




That seems about right to me....77 gr gives me 2880-2890 from a 24" Krieger 410 SS barrel.



The 280 Remington is overbore.

The 7 Rem Mag is over bore.