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Old 10-18-2020, 02:12 PM
horsepower horsepower is offline
 
Join Date: Nov 2009
Location: Outside High River
Posts: 308
Default How I am finding a hunting load ...

I have been working on a repeatable method to find a hunting load with minimal effort that is efficient in rounds shot.

This is a paring down of a 1000yd procedure I’m testing on “hunting rifles”. This has worked great in 4 rifle so far this fall producing excellent results for hunting (1/2 to 1 MOA). Brass has been 1x fired before testing, or freshly annealed.

*** As usual, be aware of pressure signs during max load and COAL testing. Seek advice if you are unsure of what you are doing (regarding reloading) ***

STEP 1. Find max powder load

Shoot 1 shot at 350+- yds at same target point
Follow reloading manual to determine powder load
rounds 0.020” off the lands
load rounds in .3gr (.5gr for magnums) increments

potential nodes will start to be seen. ( minimal horizontal/close shots)

STEP 2. Find best seating depth

Shoot 3 shot groups at 100 yards. Each group gets a new target
Pick a powder load that that was bad from first test (off node)
I shoot in 0.003” increments, 0.011, 0.014, 0.017, 0.020, 0.023, 0.026, 0.029

STEP 3. Test for powder node

Shoot 3 shot groups at 100 yards. Each group gets a new target
seating depth is best from "step 2”
load rounds in .2gr (.3gr for magnums) increments several charges on either side of potential found during “step 1” test.

STEP 4. Confirm load

Shoot 3 shot groups at 200 +- yards

Notes:
When using a magazine that restricts COAL I seat the bullet to near max magazine length and work backwards in 0.003” increments (we did 1 test in 0.010” increments with success)

Bullets have been randomly pulled from the box, brass is the same head stamp but may have mixed lots.
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