Absolute Hammer load data

[RockyMtnMT]

I think this will work. @GLTaylor has been compiling load data from folks working up loads with the new Absolute Hammer bullets. Thanks to him for his hard work. I figured I would post it in a place where guys can find it more easily. If my link doesn't work then George can put his link in here.

 

[GLTaylor]

Here is the latest data: 12/23/24

Preamble:
Action lengths, magazine capacities, chamber dimensions and freebore can be different for every rifle, even within the same cartridge/caliber. This can affect the potential COAL and CBTO for every rifle. Measure AND establish both the maximum COAL and CBTO for YOUR rifle before loading any bullet, including Hammers. Do not simply follow generic guidelines. Never Assume these loads will work in Your rifle. Always measure and verify!

Since the COAL and CBTO measurements are unique to each rifle listed, any changes to those dimensions can affect pressure. The loads listed were deemed safe in those specific rifles by the submitter of that load. Use standard safe reloading practices to work up a safe load in your rifle.

Latest Update: 12/23/24

 

[BountyHunter]

Looks like nothing for straight 7-08. Hmmm, no one likes it

 

[GLTaylor]

Looks like nothing for straight 7-08. Hmmm, no one likes it

Use AI data, just back it down for starting loads and work up
And don't forget to post your results for others - just like you're looking...

 

[JMW67]

new data for the 7mm08 AI 140 AH, lapua brass, cci BR2, 45.2gr. IMR 4166, 2.925 COAL 5 shot avg. 3042fps 2.1 SD group at 150 looks like one 30cal. hole, no pressure at all could go further but why leave this accuracy and beat up brass

 

[graywolf]

Absolute Hammer 151 gr, 22" Tikka WSM, 0.05" off lands, Winchester brass.
I started with 52 gr H4895. Good accuracy and ES but low velocity, 2735 fps. I will work up but don't have high hopes for 4895 getting to where I want without pressure issues.

 

[just_jon]

Shot my 300WM with the 178 AH and Staball 6.5.
Rem 700 24" factory, new WW brass, Fed 210, OAL 3.687"

73.0: 3,080 fps
74.0: 3.001 fps
75,0: 3,175 fps
76.0: 3,213 fps
77.0: 3,190 fps
78.0: 3,215 fps
79.0: 3,278 fps (heavy ejector mark)

Accuracy continuesTo be excellent.

 

[LVJ76]

Looks like nothing for straight 7-08. Hmmm, no one likes it

I'm trying the 140gr on mine and no luck yet. Tried IMR-4064 and nothing. Got 4895 and RL17 to go. Will keep everyone updated.

Stay safe

 

[sika64]

Anyone have a good starting point for the 300wsm and the 178 ?

 

[19 Badger]

I shoot the 110 Hammer Hunters and just tried the 109 Absolutes in my factory barreled Tikka Superlight 6.5 cm with a 8" twist. My current proven load is 41.9 grains of Varget @ 3115 fps with the 110 Hammer Hunters, that is where I started and went up from there with the same CBTO 2.115". Loads became compressed with 42.8 grains with only a 45 fps gain over regular 110 HH's. I have attached my target with my data using Varget powder. Steve did let me know that I will probably have to move up to a faster burning powder when using the Absolute's but recommended starting with the Varget and see how much more I could get out of my case capacity (Lapua brass). Even after loading another .9 grains of Varget from my normal load, the group still managed to hang around at a very respectable .750" from a 100 yards. I then switched to IMR 8208 XBR and will attach those findings shortly. All velocities were recorded with a Chrony @ 10' from muzzle.

 

[19 Badger]

I then moved to some IMR 8028 XBR powder with the same rifle/109 Absolute combination. I started low at 37 grains and worked my way up to pressure (which I found @ 42.5 grains and 3270 fps). Minor bolt lift, no ejector marks but threw point of impact out of group so I decided to stop there. What amazed me is that up until I hit pressure at 42.5 grains, my load had increased by 5 whole grains (1 whole gr increments) along with an overall increase of 400 fps and still maintained a 6 shot group right at 1"! I will back off and work up a few loads and see if I can put together a load with IMR 8208 XBR, looks pretty promising tho.

 

[GLTaylor]

3270 - 3115 = 155?
You may be able to get more
Oh, you meant in this powder, start to finish?

 

[19 Badger]

I think I could especially if I switched to Hornady brass. I figured 100-150 fps over the standard 110 HH is a good pick up... I'm not in a hurry to switch yet, I have a ton of Varget and only a pound of 8208 xbr. Lol

 

[Calvin45]

I'm not disputing the results or anything, this is legit exciting. I'm just having a hard time believing 3450 FPS with a 178 grain in a .300 win mag and no massive overpressure. And I very much want to believe, i shoot a .300 win mag. I probably will end up trying to see for myself, don't want to seem
negative it's just that if there's one thing life teaches us it's that 9 times out of 10 if something seems too good to be true it probably is. But there's always hope for that 1 time....