Share Your Hammer Loads

300 wm
Proof 24", 10 twist, TBAC ultra 7
ADG brass
3/8 crimp
215m
RL 23
182 HHT
3.550 oal
70.0 - 3049 (all compressed)
71.0 - 3094
72.0 - 3092
72.5 - 3121

308 win
Carbon6 16", 9 twist, TBAC ultra 7
ADG brass
3/8 crimp
215m
154 HHT
2.800 oal
8208 xbr
43.0 - 2712(all compressed)
44.0 - 2740
44.5 - 2778 (ejector)

Benchmark
41.0 - -
42.0 - - (compressed from here)
42.5 - 2716
42.5 - 2719
43.0 - 2730 (ejector and stiff bolt)
 

. The powder was H335 @ 54 grains sparked by CCIBR-2 primers. The velocity the first day was 3,386 feet per second and the next time it was 3,341 FPS. At least they were sorta accurate with 7/8” groups at 100 yards.​

What caliber and bullet info, if you don’t mind.
Thanks
 
The COAL and CBTO measurements are unique to this rifle which can affect pressure. This load was deemed safe in my rifle, use standard safe reloading practices to work up a safe load in your rifle.

.270 Win 700LA
27" Preferred Barrel
1:8tw, 0.290 freebore, 5R
Sig Sauer brass
FM210
85SH
COAL: 3.030
1/4 crimp
Ramshot Big Game
61.0 - 3766
62.0 - 3875
63.0 - 3898
64.0 - 3992
65.0 - 4016
No pressure at this point in my rifle.
 
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Savage Model 110 High Country
24" barrel 1:10 twist
300 wsm

Hornady Brass
Federal LRM 215
168 gr HHT bullet
63 grains H4350
0.035 off the lands
3100 FPS Sub Half MOA

ES 15ish depending on the group measured
SD 7-8 depending on the group measured
63.5 grains had 3130 fps with slightly heavy bolt lift.
Load built in 70-80 degree temps.
 
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Savage Model 110 High Country
24" barrel 1:10 twist

Hornady Brass
Federal LRM 215
168 gr HHT bullet
63 grains H4350
0.035 off the lands
3100 FPS Sub Half MOA

ES 15ish depending on the group measured
SD 7-8 depending on the group measured
63.5 grains had 3130 fps with slightly heavy bolt lift.
Load built in 70-80 degree temps.
Cartridge?
 
Bullet: 124gr Hammer Hunter
Cartridge: 6.5 Creedmoor
Barrel: 24" 1:8 Howa 1500
Brass: Lapua
Primer: FedArm Large Rifle
COAL: 2.850" (0.075" jump)
Powder: StaBALL 6.5
Stability: 1.48sg @ sea level, 1.94sg as tested.

42.0gr @ 2801fps (n1)
43.0gr @ 2849fps (n1)
44.0gr @ 2942fps (n1)
44.5gr @ 2955fps (n1)
45.0gr @ 2977fps (n4, sd0.6)
45.5gr @ 3029fps (n1, +p)

45.5gr gave me a mild case of sticky bolt and slightly flattened primers. Dataset for the final 45.0gr load was 2976,2977,2978,2977, with no read on the last shot on my Magnetospeed V3.
 
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154 HHT 0.308, 300 WSM, 20" barrel, Bighorn Origin action, Norma brass, Fed 215M primer, 2.855" COAL (0.025" jump), Varget. All loads were tested at 82 degrees at sea level in 3 shot groups at 100 yards. Speed measured using a LabRadar.

Charge Weight (Varget)Group Avg. VelocitySDGroup SizeNotes
56.52981161.38"
57.03010170.75"
57.53024210.48"
58.030653.50.99"
58.5310113.5N/AAdjusted scope zero
59.0312023.31.54"Slightly sticky bolt
59.5314217.70.77"Slightly sticky bolt
60.031722.61.19"Sticky bolt, ejector mark
 
Load data for 68gr HHT / 223 Remington (CIP 62,000psi)

***bolt gun data***
semiautomatic will be a bit lower, but work up from the bottom. Some powder/primer combos below can be loaded higher than what you see by up to 0.5gr, depending on your components, and you may need to in order to see best accuracy since I think @Pickens72 notes (and I observe) that these pressure somewhat lower than regular hammers. Temps at the time of firing were around 80°F, 70ft elevation, and 75% humidity. Any comments will appear after load data. None of these loads were worked up with a crimp; some powders show more velocity/pressure changes with a crimp, so be mindful of this; I will note when this is the case.

***please work up loads for your gun and components***

Gun: Howa mini action, 223 Remington, 20" barrel
Brass: Lake City 2022, once fired and annealed, 1.750" trimmed
Bullet: 68gr HHT, 2.360" C.O.A.L.

A2460 / CCI 450

24.5gr - 2844fps
24.8gr - 2881fps
25.1gr - 2901fps
25.3gr - 2913fps
25.5gr - 2922fps
comments: start at 23.5gr; limited by case fill in the 223 remington

----
A2230 / CCI 450

22.9gr - 2730fps
23.3gr - 2787fps
23.6gr - 2799fps
23.9gr - 2959fps (possible error)
24.2gr - 2914fps
24.4gr - 2921fps
24.6gr - 2943fps
24.8gr - 2992fps
comments: start at 22.5gr; mild pressure/velocity increase with crimp; unless you need this for a gas gun, use X-terminator instead. Charges will be the same.

----
Benchmark / BR-4

23.1gr - 2732fps
23.5gr - 2789fps
23.8gr - 2824fps
24.1gr - 2874fps
24.4gr - 2884fps
24.6gr - 2916fps
24.8gr - 2923fps
25.0gr - 2960fps
comments: start at 22.5gr; crimping actually showed slightly lower velocity in most cases as ccharges get higher.

----
N135 / BR-4

22.8gr - 2807fps
23.2gr - 2823fps
23.5gr - 2879fps
23.8gr - 2950fps
24.1gr - 2965fps
24.3gr - 2996fps
comments: start at 22.0gr; moderate velocity/pressure increase with crimping.

----
AR Comp / BR-4

22.3gr - 2780fps
22.7gr - 2800fps
23.0gr - 2818fps
23.3gr - 2879fps
23.6gr - 2920fps
23.8gr - 2913fps
24.0gr - 2919fps
24.2gr - 2943fps
comments: start at 21.5gr; CCI 450 gives more velocity per charge weight, as does crimping; pressures out at lower velocity when crimping vs not.
 
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Kimber Montana, .300 WSM, 26" Bartlein barrel, 1:11 twist
124 gn Hammer Hunter
Fed 215 primer (except where noted otherwise)
Nosler or ADG brass, as noted, previously fired and annealed
No crimp

B/L = bolt lift
E/M = ejector mark
crunch = compressed load

Note: In the comments, "slight E/M" means the E/M is visible under a loupe, but not to the naked eye. Thus, my "slight E/M" is most other people's "no mark," and I treat such loads as safe under those conditions, although it is on the ragged edge of over-pressure.

At the 3700+ speeds, the 124 gn Hammer Hunter is a laser on antelope and deer, and puts them down with extreme prejudice.

powder & charge% fillVelocitycomments
IMR 4064Nosler brass
61.089%3460
61.589%3499
62.090%3542
62.591%3540
63.092%3606
63.592%3623
64.093%3678
64.594%3707
65.094%3755hard B/L
IMR 4064ADG brass
62.090%3524
63.092%
64.093%3689
65.094%3747hard B/L, slight clicker.
N540ADG brass
65.086%slight clicker. 65.0 - 67.0 produced a 0.573" group
66.088%slight clicker
67.089%3810hard clicker. No other pressure signs.
N550Nosler brass (shot great groups @ ~3800fps)
68.8094%3750Fed 215m primer
68.9095%3756
69.0095%3773blown primer, E/M . . . ???
69.1095%3775no pressure signs
69.6095%3775Fed 210 primer (i.e. non-magnum)
69.8096%3782barely visible E/M
70.0096%3810hard B/L, blown primer, E/M
N550ADG brass
65.0089%3499
66.0091%
67.0092%3570
68.0093%
69.0095%3710
70.0096%3743very slight E/M
71.0097%3827hard B/L, hard clicker, slight E/M
Staball 6.5ADG brass
74.0095%3654
75.0097%3694
76.0098%3762
77.0099%3782
78.00100%3831slight E/M. Fastest safe load found.
79.00102%3885slight crunch. hard B/L; but no E/M, primer still rounded
H4350Nolser brass
71.0097%3657
71.5097%3690start drop tube
72.0098%3698
72.5099%3752
73.0099%3775
73.50100%3773
74.00101%3825slight E/M
74.50101%3859clicker, hard B/L, slight E/M
H4350ADG brass
69.0093%355769 - 71 produced a very tight group
70.0095%3602
71.0096%3663
72.0097%3662
73.0099%3744no pressure signs
74.00100%3799drop tube, vibrate, crunch. slight clicker, slight E/M
74.20100%3834slight clicker, E/M
N555ADG brass
63.0087%3183
64.0089%
65.0090%3243
66.0091%
67.0093%3363
68.0094%3389
69.0096%3424
70.0097%3466start drop tube
71.0098%3508
72.00100%3560slight clicker, slight E/M, flattened primer
H4831SCADG brass
65.0087%3016
66.0088%
67.0090%
68.0091%3218
69.0092%
70.0094%3309
71.0095%
72.0096%3396
73.0098%3394slight E/M
74.0099%3448no E/M. This powder is too slow
N560ADG brass
70.0091%3312clicker! (huh? why?)
71.0092%3348no pressure signs
72.0094%
73.0095%3443
74.0096%3489
75.0098%3569
76.0099%3626
77.00100%3671slight hard B/L. This powder is probably too slow?
 
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Kimber Montana, .300 WSM, 26" Bartlein barrel, 1:10 twist
124 gn Hammer Hunter
Fed 215 primer (except where noted otherwise)
Nosler or ADG brass, as noted, previously fired and annealed

B/L = bolt lift
E/M = ejector mark




powder & charge% fillVelocitycomments
IMR 4064Nosler brass
61.089%3460
61.589%3499
62.090%3542
62.591%3540
63.092%3606
63.592%3623
64.093%3678
64.594%3707
65.094%3755hard B/L
IMR 4064ADG brass
62.090%3524
63.092%
64.093%3689
65.094%3747hard B/L, slight clicker.
N540ADG brass
65.086%slight clicker. 65.0 - 67.0 produced a 0.573" group
66.088%slight clicker
67.089%3810hard clicker. No other pressure signs.
N550Nosler brass (shot great groups @ ~3800fps)
68.8094%3750Fed 215m primer
68.9095%3756
69.0095%3773blown primer, E/M . . . ???
69.1095%3775no pressure signs
69.6095%3775Fed 210 primer (i.e. non-magnum)
69.8096%3782barely visible E/M
70.0096%3810hard B/L, blown primer, E/M
N550ADG brass
65.0089%3499
66.0091%
67.0092%3570
68.0093%
69.0095%3710
70.0096%3743very slight E/M
71.0097%3827hard B/L, hard clicker, slight E/M
Staball 6.5ADG brass
74.0095%3654
75.0097%3694
76.0098%3762
77.0099%3782
78.00100%3831slight E/M
79.00102%3885slight crunch. hard B/L; but no E/M, primer still rounded
H4350Nolser brass
71.0097%3657
71.5097%3690start drop tube
72.0098%3698
72.5099%3752
73.0099%3775
73.50100%3773
74.00101%3825slight E/M
74.50101%3859clicker, hard B/L, slight E/M
H4350ADG brass
69.0093%355769 - 71 produced a very tight group
70.0095%3602
71.0096%3663
72.0097%3662
73.0099%3744no pressure signs
74.00100%3799drop tube, vibrate, crunch. slight clicker, slight E/M
74.20100%3834slight clicker, E/M
N555ADG brass
63.0087%3183
64.0089%
65.0090%3243
66.0091%
67.0093%3363
68.0094%3389
69.0096%3424
70.0097%3466start drop tube
71.0098%3508
72.00100%3560slight clicker, slight E/M, flattened primer
H4831SCADG brass
65.0087%3016
66.0088%
67.0090%
68.0091%3218
69.0092%
70.0094%3309
71.0095%
72.0096%3396
73.0098%3394slight E/M
74.0099%3448no E/M. This powder is too slow
N560ADG brass
70.0091%3312clicker! (huh? why?)
71.0092%3348no pressure signs
72.0094%
73.0095%3443
74.0096%3489
75.0098%3569
76.0099%3626
77.00100%3671slight hard B/L. This powder is probably too slow?
Awesome Information, Thank You Sir
 
280ai
Rem 700 la trued,
22in Xcal cf barrel 7.5 twist.
4500ft, 60deg
155AH

R16, fed 210
56.5- 2948
57.6-3010
58.5- 3072 slight primer blow by
59.6- 3121 slight oriner blow by

Seated .10 off the lands, In the first PDR groove. With a quarter turn lee cramp.

All case measurements are good, no stretching anywhere.

Finished with 57.9gr @ 3031 avg
Es 10
.45in 100yd
 

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A while back I shared a load on 6.5x55 with 121gr Heavy Hammer bullets (page 3 of this thread). I have since acquired some 118gr HHT and set forth to develope a load for it. Since they were relatively similar in weight I decided to try the easy way first and I am glad I did. I loaded some up with the exact load I have with the 121gr bullets. I didn’t even change my seating depth die. Here are the results.
 

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