Share Your Hammer Loads

280AI, 26in 8 twist. 140g Absolute Hammer, 58.1g H4350, CCI BR2, Peterson Brass, 3.435 coal, 1/8t FCD crimp, Avg Vel: 3200fps, SG 2.05 (sea level)

Ladder (powder/vel): 55/3047, 55.5/3038, 56/3102, 56.3/3122, 56.6/3113, 56.9/3147, 57.2/3162, 57.5/3192, 57.8/3204, 58.1/3212, 58.4/3217 fain ej mk, 58.7/3262
 
Note: Nosler brass (what I was working on before I bought some Peterson...), different seating depth, no crimp.
280AI, 26in 8 twist, 140g Absolute Hammer, 58.5g H4350, CCI BR2, Nosler brass, 3.345 coal, no crimp, Avg vel: 3116fps, SG 2.03 (sea level)

Ladder (powder/vel): 57/2894, 57.6/3069, 57.9/3112, 58.5/3116, 58.8/3118, 59/3153 faint sticky extraction, 59.3/3149, 59.5/3179, 59.5/3179 sticky extraction (s.e.), 60/3202 s.e., 60.3/3216, s.e., 60.5/3225 s.e
 
257 Wby., 26”, 1:10 T
95 HHT
Brass - Wby
Primer - F215
Powder - R23
CBTO - 2.795 no crimp
67 - 3,450
67.5 - 3,460
68 - 3,519 bolt, smear
3 @ 67.2 = 0.75” 200 yds.

7mm RM, 24”, 1:8.5 T
132 HHT
Brass - FC
Primer - F215
Powder - R23
CBTO - 2.744 (0.020” jump) no crimp
67 - 3,349
67.5 - 3,337
68 - 3,370
68.5 - 3,376
69 - 3,404 bolt
3 @ 68 = 0.7” 116 yds.
 
Caliber: 6.5CM
Bullet: 125HHT
Powder: Varget
Primer: Fed215
Brass: Lapua 3x
COAL: 2.726"
Rifle: Tikka T3X Lite - unmodified factory
Barrel: 24" stainless
Twist: 1:8 (actual twist rate: 1:7.75)

Ladder: 38.5-42.0g, Fed215 primer, 3/8T FCD in middle of 1st groove from tip, Lapua 3x brass, Lee FL sizing die - expander sanded down to NT .004

Grains / FPS
Start Load: 38.5 / 2795
Final Load: 41.0 / 2996
Groups: .314 MOA @ 200 yds, .399 MOA @ 100 yds,
1 ragged hole/line @ 50 yds (no vert. dispersion)
SD: 6.5, ES: 17)
Stability Factor: 1.82 (JBM drift calc)

Temperature: 63F
Humidity: 71%
Wind: WNW 8 kts (crosswind)
Elevation: Sea level +161 ft

Notes: Reached pressure at 41.3g through 42.0g with very slight ejector ring, primer ok, bolt ok. At 42.0g reached max case capacity at 3,051 fps. Accuracy node with no pressure signs at 40.0g (2,996 fps avg mv) - tight groups.

Leupold 4x fixed scope @ 50-200 yards
Harris bipod and rear sand bag off bench
Magnetospeed chrono.

The 125HHT (2,996 fps) was slightly faster than the 124HH (2,978). The difference was possibly due to slightly warmer weather (+13 degrees F), and a new batch of Varget.
 
.280 AI / 145 grain HHT
Remington 700 Blueprinted
CarbonSix 26" barrel 1-8 twist with APA micro-bastard brake
Nosler Brass, CCI-250 mag primer, 57 grains Win. Staball 6.5, Lee Factory crimp die, COAL - 3.330"

Average FPS - 3,216
SD - 22
ES - 67
No signs of pressure
Sub MOA groups
 
7 REM MAG Weatherby Vanguard
1:9.5 twist
24in barrel
MDT Oryx chassis
132gr. HHT
67gr. H4350
50 thousandths off
Peterson Brass
Federal 215 large rifle magnum primer
3402fps
Sub 0.5 MOA groups every time
 
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mark v accumark 28” barrel 1-10 twist. Not sure of size of group. This particular rifle struggles shooting heavy bullets, I tried plenty. This group is the best it’s ever shot so I stopped.
 
250 Savage Ackley Improved
95 gr. Hammer HHT
22” barrel (McGowen) 1:7" twist, M77 Hawkeye action
COAL 2.531”
RamShot Hunter
Hornady .250 Savage case, once fired for forming, annealed
CCI #200 primers
1/4 turn crimp w/ Lee FCD
70 degrees ambient temp

Single shot ladder test -
46.5 - 3163
46.8 - 3186
47.1 - 3225
47.4 - 3222
47.7 - 3205

No pressure signs at all.

Planning on trying a faster powder next, I believe the RamShot Hunter may be a little slow for the lighter engraving pressure of the Hammers. Awaiting a shipment of Winchester Sta-Ball Match.
 
Savage 110C - 1966 vintage .270 Win
Rebarreled Shaw 1:10 24"
R-P brass 2X
FM210 primer
117HH
CBTO - 2.807
COAL - 3.362
0.010 setback
LFCrimp - 1/8
Ramshot - Big Game
Ladder only skipped several loads based on experience
50.0 - 3016
51.0 - skip
52.0 - 3093
53.0 - skip
54.0 - 3197
55.0 - 3316 yes big jump!
56.0 - 3348
57.0 - 3418 slight bolt stopped

This load was deemed safe in my rifle, use standard safe reloading practices to work up a safe load in your rifle.

Savage 110C - 1966 vintage
Rebarreled Shaw 1:10 24"
R-P brass 2X
FM210 primer
117HH
CBTO - 2.807
COAL - 3.362
0.010 setback
LFCrimp - 1/8
Ramshot - Hunter
Ladder only skipped several loads based on experience
53.0 - 2989
54.0 - skip
55.0 - 3079
56.0 - skip
57.0 - 3205
58.0 - 3244
59.0 - 3284
60.0 - 3341 no pressure signs, need to load more

Plan is W760 which I "forgot" to bring to range🤬 plus liking the Hunter performance!

This load was deemed safe in my rifle, use standard safe reloading practices to work up a safe load in your rifle.

@gltaylor !!
 
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Remington 700 SA Remage Magpul stock
300WSM
26" 1:10tw Preferred Barrel
ADG brass 2X
FM210 primer - yes it is a 210
154HHT
CBTO - 2.249 ( crummy magazine max )
COAL - 2.843
0.010 setback
1/4 LFCrimp
Ramshot - Big Game
Ladder only
66.0 - 3276
67.0 - 3308
68.0 - 3308 duplicate
69.0 - 3341 slight ejector
70.0 - no reading
71.0 - 3410 ejector stopped

This load was deemed safe in my rifle, use standard safe reloading practices to work up a safe load in your rifle.

@gltaylor
 
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Muddyboots said:
Remington 700 SA Remage Magpul stock
26" 1:10tw Preferred Barrel
ADG brass 2X
FM210 primer - yes it is a 210
154HHT
CBTO - 2.249 ( crummy magazine max )
COAL - 2.843
0.010 setback
1/4 LFCrimp
Ramshot - Big Game
Ladder only
66.0 - 3276
67.0 - 3308
68.0 - 3308 duplicate
69.0 - 3341 slight ejector
70.0 - no reading
71.0 - 3410 ejector stopped

This load was deemed safe in my rifle, use standard safe reloading practices to work up a safe load in your rifle.

@gltaylor
Click to expand...
I save gltaylor the reply, cartridges?😇
 
Remington 700 SA Remage Magpul stock
300WSM
26" 1:10tw Preferred Barrel
ADG brass 2X
FM210 primer - yes it is a 210
124HH
CBTO - 2.251 ( crummy magazine max )
COAL - 2.780
1/8 LFCrimp
Ramshot - Big Game
Ladder pnly
69.0 - 3490
70.0 - 3565
71.0 - 3574
72.0 - no reading
73.0 - 3652
74.0 - 3693 no pressure stopped

This load was deemed safe in my rifle, use standard safe reloading practices to work up a safe load in your rifle.

@gltaylor
 
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