I would load em up in your ol Mauser and have a field day. The new triple shocks are IMHO the greatest thing to happen too big game bullets since the invention of the Nosler Partition many moons ago. The bullets accuracy rivals any ballistic tips yet out penetrates standards such as the partitions, trophy bondeds etc... And they eliminate the only negatives of the old first generation X bullets, accuracy and fouling.

You should be able to crank that 120 up fairly stout too the low 3s. For deer sized game it will be perfect. What they lack in sheer weight they make up for with extra initial muzzle velocity and I can promise you that a 120 TSX will outpenetrate a 140 Accubond, Partition, Trophy Bonded etc... The bullets will NOT come apart either, you don't have to worry about that. I fire a 150 TSX (30 cal) at 3800fps and it performs like a lazer! Those bullets group .5" @ 100yds where my previous 130 Xbullets at nearly 4k would only shoot 1.5" @ 100yds from my same Sako. I also put them in an ol 06 of mine, the 180 TSX Federal Premium VitalShok. They are EXTREMELY accurate in my old 700 (.75" @ 100yds) and that bullet will likewise "poke a hole" in em.

Good luck,
RA