Been playing around with my new TRG A1 in .260 lately. Rifle now has 157 rounds through it.
Went through a box of 130gr ELD-M, trying to see if it would shoot with VV N160. It did, but was pretty picky until I hit the 44.7 - 45.0gr window. Well...it shot amazing down around 42.5gr...but the velocities were just way too slow. Grendel shooters would have been excited though.
44.8 is where I stayed at, and I tested it again at 300 and 650 where I trued the velocity to basically 2,800 FPS on the nose. SD was under 10, but not by much. It shot a half-minute at 300, and 2/3 MOA at 650...which is perfectly fine for me. The low shot at 650 was me, but it wasn't out of the group enough to discredit it.
View attachment 8669970
View attachment 8669969
Having ran out of 130gr ELD-M, I tried the 130gr Norma Golden Target this afternoon. I kept the charge weight of N160 the same at 44.8gr, and just messed with seating depth a little. There is a ton of room in the throat of that TRG. 2.925 was my max mag length, and I still wasn't at the lands. (2.925 OAL = 2.310 CBTO).
It's looking promising, so I'll split the difference and try again soon to verify. I didn't chronograph it today either.
View attachment 8669968
Specs:
26" TRG A1
130gr ELD-M/Norma
Virgin Peterson LRP brass
Fed 210
44.8gr VV N160
2.210 (ELD-M)/2.290-2.300 (Norma)
2,800 FPS
19 ES*
9 SD* (when I chronographed the ELD-M)
