drabdrew
Member
1:9 twist
Hammer Hunter Load Data, (See page 1, Post 8)
- Thread starter GLTaylor
- Start date
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I got my 280 ai shooting good. 143 hammer hunters on 57.2 gr of h4350. Sub moa grouping, not sure on any hard data my chrono decided not to work. I'll find out how thet perform on game this weekend.
I forgot to add, I also gave them a good roll crimp , oal was 3.33"
I forgot to add, I also gave them a good roll crimp , oal was 3.33"
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Also need bbl length, twist, brand brass, velocity when you get it and any special notes:
Where you found pressure, best groups, please.
Thanks! I'll post your load when complete
CanisLupus
Well-Known Member
@GLTaylor sorry in advance for the screenshot of my data. I know this doesn't make it easy to transfer to the spreadsheet.
7 PRC w/ 155 gr. HH, 24" bbl, 1:8 tw, Peterson brass… other pertinent info is in the screenshot, which contains data from 09-10 October 2023 while shooting into a dirt pile for the purpose of working up to find pressure signs and measure MV, so no groups to show.
On 25 Oct, I shot a 3-shot group at 100-yd while zeroing in, then gathered data from 200-700 yards. Same rifle specs as above. MV for 9 shots that I measured that day averaged 3130 fps. The 3-shot group was w/ 155 gr. HH, 70.0 gr. H1000, COAL: 3.300", and using a 0.282" expander mandrel instead of a 0.283" mandrel from the 09-10 Oct data set.
I'll work on tightening up my shot placement. I'm used to shooting 20+ lb rifles w/ smaller, non-magnum cartridges. This rifle is not too light at 9.75 lb but moves around more than I'm used to
… just need more reps behind the rifle. There're only 100 rounds down the pipe so far.
7 PRC w/ 155 gr. HH, 24" bbl, 1:8 tw, Peterson brass… other pertinent info is in the screenshot, which contains data from 09-10 October 2023 while shooting into a dirt pile for the purpose of working up to find pressure signs and measure MV, so no groups to show.
On 25 Oct, I shot a 3-shot group at 100-yd while zeroing in, then gathered data from 200-700 yards. Same rifle specs as above. MV for 9 shots that I measured that day averaged 3130 fps. The 3-shot group was w/ 155 gr. HH, 70.0 gr. H1000, COAL: 3.300", and using a 0.282" expander mandrel instead of a 0.283" mandrel from the 09-10 Oct data set.
I'll work on tightening up my shot placement. I'm used to shooting 20+ lb rifles w/ smaller, non-magnum cartridges. This rifle is not too light at 9.75 lb but moves around more than I'm used to
… just need more reps behind the rifle. There're only 100 rounds down the pipe so far.
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This is from 2023, not sure if it's the latest.
Decided to give some 124 HH a spin in a 6.5 Creed. Started at 37.5 of Varget, half grain above Steve's recommended starting point. I've got to finish, but some pretty decent groups for sure. I expected to need to crimp, but none of these were nor was pressure experienced in any of these.
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Varmint Hunter
Well-Known Member
Nice shooting. Overall, I've had better results by not crimping Hammer bullets, but my experience doesn't seem to be universal. My Hammer suggestion is to find your load with uncrimped cases and then test with a crimp to see if there is any improvement.
FWIW - I shot an average NC deer in the chest with a 124HH from my Creed. The shank exited near the hip.
Those are deadly in 6.5 creed, shot a deer last year at 200 yards, it went 15 yards and dropped .
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Jerry Smith
Member
My load for 6.5 Creedmoor using 124 Hammer Hunter:
Lapua brass
39.8 grains of Varget
CCI 450 small primers
Avg velocity 2,967
SD 2
ES 7
Excellent grouping under 1/2 inch
Lapua brass
39.8 grains of Varget
CCI 450 small primers
Avg velocity 2,967
SD 2
ES 7
Excellent grouping under 1/2 inch
35 whelen with 200 gr hammer 3.33 OAL
Gun is a remington 7600 with a 22in barrel 1/16 twist
Reformed starline .270 win brass
Fed 215m primer
.002 neck tension
1/4 turn FCD
Staball match
61.0gr 2535fps
61.5gr 2560fps
62.0gr 2587fps compressed*
63.0gr 2606 fps
64.0gr 2671fps
65.0gr 2689 fps out of room for powder, powder is too slow
Ar comp
58.0gr 2790fps max load for my gun
59.0gr 2818fps stiff bolt
60.0gr 2850fps again stiff bolt
Gun is a remington 7600 with a 22in barrel 1/16 twist
Reformed starline .270 win brass
Fed 215m primer
.002 neck tension
1/4 turn FCD
Staball match
61.0gr 2535fps
61.5gr 2560fps
62.0gr 2587fps compressed*
63.0gr 2606 fps
64.0gr 2671fps
65.0gr 2689 fps out of room for powder, powder is too slow
Ar comp
58.0gr 2790fps max load for my gun
59.0gr 2818fps stiff bolt
60.0gr 2850fps again stiff bolt
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Just a reminder. Need barrel length, twist and OAL please.
