Thread: Garmin Truth - 284 Win velocity

I’ve been doing some load development and checking with my two x 284s and have used an optical Chronograph for years.

Recently seeing Quikload/GRT estimate’s, and other user results I’ve been questioning the chrono results. Finally got a Garmin and some “real” results. These are my loads in a long action so work up as always.

Kimber 284 with 17inch barrel loaded long @ ~3.15in OAL
140 Ballistic Tip with 57g W760
Garmin 2820 fps

Tikka 284 with 20inch barrel loaded long @ ~3.15in OAL. A quick check last night when hunting for a big pig in a forestry block.
162 ELDX with 53.3g W760 - I thought was doing 2750-2770fps
Garmin 2705fps over 3 shots
140 Ballistic Tip with 56g RE16 - I thought was doing 2960-2980fps
Garmin 2920fps over 4 shots

Now I can validate my drop chart with confidence. The Garmin (or Athlon etc) is a game changer, so easy to set up and saves wasting ammo and stress.

With both my rifles I would have been better off using GRT than the optical chronograph!

As an aside I have a small pic rail on both 284s (and the 22-250 now) and use the MTN bipod on both and that is also a game changer. It’s so light and easy to use.