Hammer Hunter Load Data, (See page 1, Post 8)

NorCalRiceGuy

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Went out to the range this afternoon to test the 68.7gr charge weight with the 146 HH. (Data on post #200) I think I found the load for this rifle. Dont plan on shooting more than 500yds with this setup, so I think this load will do. Shot 10 rds. 5 for groups and 5 for velo data. Got an error on one of the velo rounds so I used another one from the group rounds. Ended up using 4 for groups. 5 shot velo data is as follows:
Avg: 3259 fps
SD: 3
ES: 9
With a .455" group. Overall I am pretty pleased with this group. Cant wait to smack something with it this fall.View attachment 285485
Nicely done! Proving once again that our buddy, Mr. Bean, knows his stuff! :D
 

hystaspes

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I went out to find pressure with two shots at each load.


Brass Starline 260
COAL 2.850
Primer Federal 210
Powder H4831
Barrel 26”
Savage 11 action
Bullet 124HH

load fps1 fps2
44 2801 2808
44.4 2845 2832
44.8 2860 2871
45.2 2879 2874
45.6 2925 2922
46 2924 2926
46.4 2939 2939
46.8 2972 2961
47.2 2981 2974
47.6 3016 3036 ejector marks
 

NorCalRiceGuy

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I went out to find pressure with two shots at each load.


Brass Starline 260
COAL 2.850
Primer Federal 210
Powder H4831
Barrel 26”
Savage 11 action
Bullet 124HH

load fps1 fps2
44 2801 2808
44.4 2845 2832
44.8 2860 2871
45.2 2879 2874
45.6 2925 2922
46 2924 2926
46.4 2939 2939
46.8 2972 2961
47.2 2981 2974
47.6 3016 3036 ejector marks
46.4 looks good but that's a really slow powder for that light of a bullet.
 

hystaspes

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Yes, I was happy with the entire range from 45.6 to 46.4. I used h4831 because it is a powder I have plenty of. I had a choice of N165 or H4831 where I have sufficient powder. I COULD play with H4895 or imr4064 however i have less that 1/3 lbs of each.
 

Zen Archery

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Dec 27, 2012
Messages
722
.264 Hammer 85 Hunter
6.5 Creedmoor, 20" 1:8 TR

Brass Hornady 1.910
COAL 2.650
Primer WLRM

IMR4064
43.8, 3342 FPS, ES 18 FPS, Grp. .580"
44.0, 3360 FPS, ES 14 FPS, Grp. .254" (Primer flattening)
44.2, 3371 FPS, ES 10 FPS, Grp. .225" (Slight case mark)

Varget
43.0, 3296 FPS, ES 15 FPS, Grp. .28"
43.5, 3329 FPS, ES 12 FPS, Grp. .678"
44.0, 3363 FPS, ES 3 FPS, Grp. .195 (No signs could go hotter but this is a good load).
 

hystaspes

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N165 would be slower than H4831 so that wouldn't be what you want. I would do a ladder with the IMR4064 and see how that goes. Start at 39 gr.
Thanks for the suggestion. I have had bad experiences using 4064 I suspect due to variables related to load developing in 90+ Fahrenheit summers and shooting in Colorado 0-30 Fahrenheit.
 

NorCalRiceGuy

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Thanks for the suggestion. I have had bad experiences using 4064 I suspect due to variables related to load developing in 90+ Fahrenheit summers and shooting in Colorado 0-30 Fahrenheit.
Understood. I had the same thing happen with RL22, but in the opposite direction, developing in 50-60 degrees and shooting at 95°.
 

simmonzz

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May 21, 2021
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Location
Oregon
This is my first post on here and I had trouble finding a starting load but I did find pressure. Here’s my contribution to the spreadsheet.

All charge rates were shot using my brand new 0 rounds fired and to break in my 26” 1:9 300nm. I used retumbo, 199HH, virgin lapua brass (no prep), cci lrm, and 20 thousandths jump for all loads listed below. I was also shooting at 2500ft and it was a 75* day. I also followed proofs break in procedure, shoot 3 clean, shoot 3 clean, shoot 5 clean

my buddies chrono is a cheaper one but usually reliable and I found it odd the velocities were a little stagnant for several charge rates unless the node was really that big but it’s the data I’ve got. I’ll be shooting for groups this weekend (7/24 or 7/25)

80gr - 2930
81gr - 3009
82gr - 2911 (I think the chrono messed up)
83gr - 3030
84gr - 3037
85gr - 3030
86gr - 3100 (very faint ejector Mark)
87gr - 3167 (light ejector Mark)
87.5gr - failure to fire twice (bad primer)
88gr - 3228 (light ejector Mark)
88.5gr - 3267 (ejector smear, heavyish bolt lift with a click at the top, primer cratered)

88.5 was definitely a little hot but really liked the velocity. I plan on shooting 5 at 87.5, 5 at 88 for groups this weekend and I’ll report back.
 
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