Introducing the Absolute Hammer

Muddyboots said:
Can't wait for a .277 ~150 grain version that could take the .270 Win into whole new territory! Heck if I can get 3150 in 24" barrel with 150ABLR, is 3350 possible then with AH? Maybe more with 26" barrel? Would this be a 1:9 or 1:8 twist for .270 Win?
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I think the 8" twist would about right for a 150 class bullet.
 
CVCOBRA1 said:
This is not a "rebarrel" forum so why can't we get some bullets that work with our old fashion twist rates? I think it is great that you are ahead of the curve but why should we need to build a rifle to shoot your new subjects?
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In order to get the most out of the bullet. It's like Pirelli Cinturato P7s back in the late '70s. Revolutionary tire design, but you weren't going to put them on a Shelby Cobra. Stay the course, rebarrel when you want to use the AH's.
edit to add: Hammer has some awesome bullets in 6.5 and 7, but my twist rate is such that they will only be "marginally stable." Next time, I'd get a faster twist on my barrel. On the bright side, the more I shoot, the faster I get there!

RockyMtnMT said:
I think because the AH is lighter for its length. We could be losing some bc with the dip in front of the shoulder. The bc for the AH is figured at the end of its usable distance and I left .5 moa on the table when I calced from our drops since I did not take into account the 5 moa left to right wind hold.

We made this design to stop the varying bc from rifle to rifle due to the amount of engraving forward of the shoulder onto the ogive.
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Is the lighter weight / length because of the ogive design, or are you using different alloys or bullet construction (i.e. interior cavity, etc.) ? I did not take the time to look up and read your patent.
How does the lighter weight affect the Sectional Density?
 
RockyMtnMT said:
I'm not sure how to answer that. I think we will have a full line done around 1st of the year.
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Just curious if there will be a significant change that I should wait for... I'm in no hurry I would just like to have the rifle done for next summer testing and hunting in the fall...
 
RockyMtnMT said:
hammerbullets.com/product/284-cal-155g-absolute-hammer/

Here is the 1st of many Absolute Hammers to come. We will be designing and producing these from .172 cal all the way up. Introduction of bullets will be in the most popular calibers and common twist rates and working our way into the less common stuff. We will base our design work based on sales of our current line.

We set out to design this bullet to address the problem that we see with bullets of tight bore specifications that engraver further out onto the ogive resulting in poor bc performance. We came up with an ogive design that does not allow any engraving forward of the shoulder of the bullet. Just before the ogive reaches bore dia we put in a reverse PDR going into the first PDR drive band. For those that don't know PDR is Parabolic Drag Reduction, this is what we patented. Now there will be no difference from rifle to rifle in how much they distort the nose of the bullet. The only thing that can change is the configuration of engraving on the baring surface. So with this design you will likely not be able to reach the lands. Nor will you base to ogive measuring tools work as you are used to. They will set on the shoulder of the bullet.

We knew when we started the 1st prototype design that we would be seeing a reduction is engraving pressure. Boy were we surprised! We are getting 3320 fps with this 155g Absolute Hammer in our 27" 280ai with very comfortable pressure. 2950 fps is the highest vel that Hodgdon shows with a 150g bullet and the fastest that Nosler shows for a 150g is 3107. The highest vel they show for a 160g bullet is 2872 fps Hodgdon and 3045 fps Nosler. They are getting their vel using H1000 and 4831 burn rate powders. We were not able to find any pressure until we dropped down to rl16 powder. We have not experimented with many powders as we were just after accuracy and ballistic information. We are running about 10g more powder at this burn rate than Hodgdon data shows for a similar burn rate and bullet weight.

So to give you an idea, the Absolute Hammer will gain enough vel to make a 30-06 run sxs with a 300wm. Hodgdon data shows a 30-06 running a 180g bullet at 2850 fps on the top end and the 300wm running just shy of 3050 for a 180g bullet. Assuming we see the same increase in vel with the 30-06 as we see with the 280ai, this is truly a game changer. Magnum plus velocities from large rifle cartridges and ultramag plus velocities from magnum cartridges. Trust me we will be testing big magnums very soon. I am pretty sure we will be pushing the 3700 fps mark with a 200g bullet in the Remington Ultramag. I will update on this asap.

Here is a pic, let me know what you think.

28155AH.JPG
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The idea sounds great. So, it looks like a VLD and a Barnes with pressure reduction bands. Why is it different? From the description I expected to see a groove right behind the Ogive. It would seem a natural progression if you tested a 30/06 and got 300 win mag velocities, why not test the 300 WM and see what velocities resulted? RESPECTFULLY. Mike C.
 
RockyMtnMT said:
Brian isn't the hunter. His uncle is. 72 years old been applying in WY since he was 13. Pretty much took a life time to draw the tag. I think he is about to get 2 feet of snow tomorrow!
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Well I'd give anything to hunt with my favorite Uncles who both passed too soon...He will be ready to rock and roll for sure when he gets home.
 
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Muddyboots said:
Can't wait for a .277 ~150 grain version that could take the .270 Win into whole new territory! Heck if I can get 3150 in 24" barrel with 150ABLR, is 3350 possible then with AH? Maybe more with 26" barrel? Would this be a 1:9 or 1:8 twist for .270 Win?
Click to expand...
A 270 AI is in my near future
 
Michael Cantor said:
The idea sounds great. So, it looks like a VLD and a Barnes with pressure reduction bands. Why is it different? From the description I expected to see a groove right behind the Ogive. It would seem a natural progression if you tested a 30/06 and got 300 win mag velocities, why not test the 300 WM and see what velocities resulted? RESPECTFULLY. Mike C.
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I'd say because .284 is all they have produced so far, just guessing
 

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