180 Hammer Hunters 300 Win--which powder? RL26, Retumbo, H4350, H1000?

Wyo300RUM,
I'll need all of your rifle, barrel, twist, brass, primer, OAL, and loads/velocities to post😄
Ok Mr. Taylor, the info 😉

300 RUM
REM 700 action.
28 in. Bartlien barrel. Varmit contour. 5R -1 in 10 twist.
181 Hammer Hunter. ADG/GunWerks brass.
Fed 215M primer.
94.0 grs. H1000.
OAL 3.80 in.
Ave. FPS 3432
SD2 ES4 (4 shots).

300 Win Mag.
Weatherby Vanguard.
26 in. Factory barrel. 1 in 10.
180 Hammer Hunter
ADG/Gunwerks brass.
Fed 215M primer
80.0 grs. RL26 (Going to drop down to 79.5 or 79.0 grs.).
OAL 3.55 in.
Ave. FPS 3303.
SD5 ES11 (4 shots).

6.5 PRC.
C.A. Ridgeline.
24 in. Factory barrel 1 in 8.
124 Hammer Hunter
ADG/Gunwerks brass.
Fed 210M primer
OAl 2.95 in.
56.0 grs. RL23
Ave. FPS 3211
SD4 ES10
(5 shots)

Just started working on loads for 7 mag with 143 Hammer Hunter now.
Ruger MK2 . 24 in. barrel
1 in 9.5 twist. I'll update you when I find something promising. 👍🏻
 
Last edited:
Ok Mr. Taylor, the info 😉

300 RUM
REM 700 action.
28 in. Bartlien barrel. Varmit contour. 5R -1 in 10 twist.
181 Hammer Hunter. ADG/GunWerks brass.
Fed 215M primer.
94.0 grs. H1000.
OAL 3.80 in.
Ave. FPS 3432
SD2 ES4 (4 shots).

300 Win Mag.
Weatherby Vanguard.
26 in. Factory barrel. 1 in 10.
180 Hammer Hunter
ADG/Gunwerks brass.
Fed 215M primer
80.0 grs. RL26 (Going to drop down to 79.5 or 79.0 grs.).
OAL 3.55 in.
Ave. FPS 3303.
SD5 ES11 (4 shots).

6.5 PRC.
C.A. Ridgeline.
24 in. Factory barrel 1 in 8.
124 Hammer Hunter
ADG/Gunwerks brass.
Fed 210M primer
OAl 2.95 in.
56.0 grs. RL23
Ave. FPS 3211
SD4 ES10
(5 shots)

Just started working on loads for 7 mag with 143 Hammer Hunter now.
Ruger MK2 . 24 in. barrel
1 in 9.5 twist. I'll update you when I find something promising. 👍🏻
Hello,
just out of curiosity, can I ask why you are using the two different HH bullets when both 30 cal rifles are the same twist rate?
I thought the 181 like a slightly faster twist.
 
Hello,
just out of curiosity, can I ask why you are using the two different HH bullets when both 30 cal rifles are the same twist rate?
I thought the 181 like a slightly faster twist.
I was using 181 for both until a good friend in Michigan told me about 180's . I see no difference. The 181 weighed from 179.8 to 182.2. I separated. The 180's weighed from 178.9 to 181.2. no big deal to me. Same twist. Not a difference to matter . 181 and 180 both are fine for 1 in 10 twist .
 
I understood it differently, that the 181 might not stabilize in a 1/10 twist which is why Hammer came out with the 180.
It's not only the weight, but the CG and weight distribution.
I was just curious how they worked for you, I tried the 180 but did not have a lot of luck with them. I had the rifle looked at by my gunsmith and he found problems with the gun. It is shooting better now that he corrected as much as he could so I am anxious to give the Hammers another try.
 
I understood it differently, that the 181 might not stabilize in a 1/10 twist which is why Hammer came out with the 180.
It's not only the weight, but the CG and weight distribution.
I was just curious how they worked for you, I tried the 180 but did not have a lot of luck with them. I had the rifle looked at by my gunsmith and he found problems with the gun. It is shooting better now that he corrected as much as he could so I am anxious to give the Hammers another try.
I haven't see much difference between the two in Win Mag and Rum. Both 1 in 10. I'm going to go with 180 tho. 👍🏻
 
Last edited:
Weight sorting the Hammers is an interesting thing. There's usually some machining oil in the hollow points, and that bit of oil can shift the weights. I sorted 100, then noticed the oil.

After I used compressed air and a paperclip to clear the oil the weights got a lot tighter.

166.54 to 166.41 = 5 ea
166.40 to 166.20 = 55 ea
166.19 to 165.98 = 40 ea
 
Weight sorting the Hammers is an interesting thing. There's usually some machining oil in the hollow points, and that bit of oil can shift the weights. I sorted 100, then noticed the oil.

After I used compressed air and a paperclip to clear the oil the weights got a lot tighter.

166.54 to 166.41 = 5 ea
166.40 to 166.20 = 55 ea
166.19 to 165.98 = 40 ea
We leave the oil in the bullet, we have found no loss of accuracy doing so
 
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