As promised…
Tikk T3X bolt action
Garmin Xero Chronograph
Starline 6mm ARC brass
Barrel has now been throated. Lowest point of the bullet is seated just below the case neck/shoulder junction, COAL 2.3065, CBTO 1.8135”. At that length, bullet jump is 0.060”.
Factory Hornady Match ammo, 108 ELDM:
2604.7
2580.5
2564.9
2597.9
2577.9
These factory rounds are now jumping 0.124” and were originally jumping 0.006”, so the slight drop in velocity is to be expected. Also it was about 20 degrees colder than last time. Small sample set, but there it is.
27.0gr H4895 under a 108 ELDM with 0.060” bullet jump:
2619.8
2624.8
2627.1
2627.6
2651.6
2624.0
2632.5
2619.0
2638.2
2639.6
Avg 2630.4, ES 32.2, SD 9.6
And more…
29.0 Lever, 108 ELDM: 2620.9
29.5 Lever, 108 ELDM: 2682.7
30.0 Lever, 108 ELDM: 2731.0
30.5 Lever, 108 ELDM: 2768.2
31.0 Lever, 108 ELDM: 2790.8
25.0 H4895, 103 ELD-X: 2448.4
25.5 H4895, 103 ELD-X: 2497.0
26.0 H4895, 103 ELD-X: 2548.3
26.5 H4895, 103 ELD-X: 2609.2
28.5 Lever, 103 ELD-X: 2616.1
29.0 Lever, 103 ELD-X: 2656.0
29.5 Lever, 103 ELD-X: 2710.9
30.0 Lever, 103 ELD-X: 2753.7
30.5 Lever, 103 ELD-X: 2803.4
Next up is a 10-shot group with each of these four combinations. If I can ever break free. Heavy work load, hunting season, other projects…hard to nail down time for this build.
Tikk T3X bolt action
Garmin Xero Chronograph
Starline 6mm ARC brass
Barrel has now been throated. Lowest point of the bullet is seated just below the case neck/shoulder junction, COAL 2.3065, CBTO 1.8135”. At that length, bullet jump is 0.060”.
Factory Hornady Match ammo, 108 ELDM:
2604.7
2580.5
2564.9
2597.9
2577.9
These factory rounds are now jumping 0.124” and were originally jumping 0.006”, so the slight drop in velocity is to be expected. Also it was about 20 degrees colder than last time. Small sample set, but there it is.
27.0gr H4895 under a 108 ELDM with 0.060” bullet jump:
2619.8
2624.8
2627.1
2627.6
2651.6
2624.0
2632.5
2619.0
2638.2
2639.6
Avg 2630.4, ES 32.2, SD 9.6
And more…
29.0 Lever, 108 ELDM: 2620.9
29.5 Lever, 108 ELDM: 2682.7
30.0 Lever, 108 ELDM: 2731.0
30.5 Lever, 108 ELDM: 2768.2
31.0 Lever, 108 ELDM: 2790.8
25.0 H4895, 103 ELD-X: 2448.4
25.5 H4895, 103 ELD-X: 2497.0
26.0 H4895, 103 ELD-X: 2548.3
26.5 H4895, 103 ELD-X: 2609.2
28.5 Lever, 103 ELD-X: 2616.1
29.0 Lever, 103 ELD-X: 2656.0
29.5 Lever, 103 ELD-X: 2710.9
30.0 Lever, 103 ELD-X: 2753.7
30.5 Lever, 103 ELD-X: 2803.4
Next up is a 10-shot group with each of these four combinations. If I can ever break free. Heavy work load, hunting season, other projects…hard to nail down time for this build.