Absolute Hammer load data

[Troutslayer2]

Will they ship the powder ?

Thank you Sir , Floyd

I was trying to be facetious. I was hoping I could get these bullets up to speed with stuff I've got on hand. I have RL26 and I bet it would work but I am trying to ration It.

 

[floyd kittrell]

Gotcha .

 

[RogerPA]

That would be great. Thanks! Mine will be a 24" IBI 1-7.5" twist. My concern was that H100V might be to slow by about 5-6 burn rates. I see Steve had success with R16 with a 155 gr at 3320 FPS!

Made it to the range today with the
.280 AI, 154 gr. Absolute Hammer (death blow) & H100V. (24F)
Barrel: 24" 1/9" (Christensen)
Neck tension: .003 (no crimp)
Case: Nosler (3x)
Primer: Fed. 215M
55 gr. 2882 FPS
56 gr. 2950 FPS
57 gr. 3019 FPS
58 gr 3047 FPS
59 gr. 3124 FPS (faint swipe mark)
60 gr. 3146 FPS (faint swipe mark)
61 gr. 3194 FPS (primer flattening & swipe)
Stopped here. Never a heavy bolt, and the entire lot shot about 1 1/2" group at 100 yards. 64 gr. filled the case to bottom of neck, but decided not to push it any further than 61 grains. My twist isn't necessarily idea for this bullet, but I don't think I'd be afraid to use it if I had to.

 

[BEEMAN]

Thanks Roger. Not bad speed for a 24" barrel. 24 degrees sounds balmy! We are in the -40's with wind chill. Do you think there's a better powder to run? I got five lbs of H100 hoping it would work. But could try H4350 as well. Also have Varget, but that might be to fast.

 

[RogerPA]

116 gr. /.277 & 119 gr. /.284 Absolute Hammer's arrived yesterday, so today I took my first experiments with these 2 bullets to the range. Just picking powders I have on-hand, and that show considerable room remaining in case with comparably bullet weights at book max. Results follows:

.270 Win. Ruger 20" barrel, 1/10", Powder: IMR 4166, Fed 215M, Hdy brass 2x, .003 neck tension, no crimp. COAL 3.298. Book max w/120 gr. Barnes XFB 48 gr. @ 3140 FPS. (Note: this 20" barrel has alway been about 200 FPS slower than a 24" barrel with the same load.)
.270 Win. (20") & IMR 4166 with 116 A.H.
48 gr. 2889 FPS
48.5 gr. 2927 FPS
49 gr. 2947 FPS
49.5 gr. 3022 FPS
50 gr. 3016 FPS
50.5 gr. 3120 FPS
51 gr. 3128 FPS
Accuracy was excellent with all weights, and showed no pressure signs at all. Still room for approximately 8 more grains to case neck. Next time we'll see where it goes.

.280 AI. Christensen 24", 1/9", Powder: Hodg. BLC-2, Fed 215M, Nosler brass 2x, .003 neck tension, no crimp. COAL 3.325, Book max w/120 gr. Nosler BT w/ 53.5 gr @ 3242 FPS
.280AI (24") & Hodg. BLC-2 w/ 119 gr. A.H.
53 gr. 3028 FPS
54 gr. 3037 FPS
55 gr. 3113 FPS
55.5 gr. 3116 FPS
56 gr. 3142 FPS
56.5 gr. 3158 FPS
57 gr. 3185 FPS
57.5 gr. 3227 FPS
58 gr. 3331 FPS
Consistent accuracy with all weights, and again, no pressure signs with any load tested. Considerable room reminds in case, so next time out I'll push it.

Related to the 2 tests above: Continued with both the .270 Win. with 116 gr. AH & IMR 4166,
and the .289 AI with the 119 gr. AH & Hodgden BLC-2.
(Cont.) .270 Win. (20" barrel) 116 gr. AH &
IMR 4166:
51.5 gr. 3145 FPS
52.0 gr. 3113 FPS
52.5 gr. 3167 FPS
53.0 gr. 3192 FPS (slight flattening of primer)
I'm really happy to get this velocity out of the 20" barrel.

(cont,) .280 AI (24" barrel) 119 gr. AH @ BLC-2
58.5 gr. 3358 FPS
59.0 gr. 3375 FPS
59.5 gr. 3443 FPS (slight flattening of primer)
60.0 gr. 3497 FPS (flattening of primer)
Certainly quick, they shoot in a tight little group, and very low recoil!

 

[dougduey]

Thanks Roger. Not bad speed for a 24" barrel. 24 degrees sounds balmy! We are in the -40's with wind chill. Do you think there's a better powder to run? I got five lbs of H100 hoping it would work. But could try H4350 as well. Also have Varget, but that might be to fast.

If you're shooting a 280 AI also, I'd suggest going with something in the 4350 burn rate. Varget may work really well, too.

 

[BEEMAN]

Yes it will be a 280AI with Peterson brass and 154 AH deadblow. Was hoping to use H100V because there's data to save on bullets. Any idea where to start with 4350 with this combo? Or Varget?

 

[RogerPA]

Thanks Roger. Not bad speed for a 24" barrel. 24 degrees sounds balmy! We are in the -40's with wind chill. Do you think there's a better powder to run? I got five lbs of H100 hoping it would work. But could try H4350 as well. Also have Varget, but that might be to fast.

I seem to have a pound or two of several powders, but 12 pounds of H100V! It does seem fairly versatile, so in a pinch I'm hoping it will work in several cartridges. I like experimenting, so I'll keep trying!

 

[dougduey]

Yes it will be a 280AI with Peterson brass and 154 AH deadblow. Was hoping to use H100V because there's data to save on bullets. Any idea where to start with 4350 with this combo? Or Varget?

What I learned from Steve was to go over to Hodgdon's website and use the max load listed (for 150 gr bullets) as your starting load and work up from there. HV100 is in the same burn rate as 4350, so you can easily use it and not have to do any "trail blazing".

 

[Blue Ridge Rifleman]

When I look at Hornady's 10th Edition I see that there is some overlap between the 139 gr and 150-154 grain loads for a number of powders currently in my reloading room. IMR4350, IMR4831, and RL19. This gives me confidence that with powders in this burn range it should be easy to establish some safe starting loads.

 

[dougduey]

When I look at Hornady's 10th Edition I see that there is some overlap between the 139 gr and 150-154 grain loads for a number of powders currently in my reloading room. IMR4350, IMR4831, and RL19. This gives me confidence that with powders in this burn range it should be easy to establish some safe starting loads.

I like to cross reference with Nosler's load data so I can see what case fill is, that way I know if I've got a good amount of room to go up in charge or not. I tend to end up 3-5 gr above published max

 

[Buck 300]

Is anyone running these is a 7mm-08? If so what bullet weight are you using?

 

[GLTaylor]

Look at the data sheet at Post #2. There's some 7/08 AI data there. Just start lower and work up for the regular 7/08. Please post results for others' benefit.

 

[dougduey]

Update for the spreadsheet
The 109 gr AH in my 6.5-284 Norma, checked groups and velocity. I ran 2 loads, one near max and the other much lower but at what looked like a node.
Ironically, both had the exact same ES (29) and SD (10.8). And both were extremely accurate.

54.2 gr HV100 3413 fps 0.44 moa
56.0 gr HV100. 3511 fps. 0.39 moa