My brother and I have been up in Perthshire over the last week on the hinds. He had his 6.5x55 Sako 85 and I was using my 0.308 Sako 75. We were both using Federal Fusion (140gn in the 6.5 and 150gn in the 308). which both of our rifles love in terms of accuracy and I have used for about five years on reds.
We have never had a problem with Fusion in the past on similar trips and have always found that it is exceptional at dropping deer on the spot if we do our bit. This year, almost all of our deer ran on but keeled over after between 25m and 150m. All were heart/lung shots and varied in range between approx. 60m and approx. 220m. On inspection, the rounds seem to have made a very neat hole on entry and an only marginally less neat hole (about 1") on exit of even the largest hinds. There was less damage to the vital organs than normal which ties in with what we saw. Given that there are a lot of variables between the shots fired, has the composition of Fusion changed over the last year or so?
In the past, I have even found Fusion not exiting a beast so I am slightly perplexed by our latest experiences. We have both purchased a job lot of that particular ammo in the last six months so all rounds are roughly the same age.
Any ideas welcome.