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Rifles, Reloading, Optics, Equipment
Reloading
Hammer Hunter Load Data, (See page 1, Post 8)
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<blockquote data-quote="dougduey" data-source="post: 2305308" data-attributes="member: 33159"><p>So, I hope this info may help others who are having issues with a rifle being finicky with Hammers at high velocities. My 280 AI was driving me crazy. It shoots the 143 HH at 3260 fps very accurately. Then the Absolute Hammers (the 140 HH in this case) came out, and seeing that I'm a velocity whore, I wanted to see how fast I could push them. I got them just over 3400 fps. Grouped great at 100 yards, but was terrible at 300. </p><p>So I decided to try the 120 HH, plus I had Bean chirping in my ear about making this a laser beam. Using 6.5 StaBall powder, I found a 1.0 gr sized node at 3567 fps. ES of 19, SD 10.1. I was ecstatic until I started testing groups. It just wouldn't group. So, I tried seating it out towards the lands one more PDR band (original COAL was set to the last PDR band). This helped, but still wasn't a typical 0.5 moa or better Hammer group that I'm used to. I called and talk to Steve at Hammer Bullets. We had a possible "ah ha" moment when I told him it shot tight groups with the Magnetto Speed on but horrible without it. He said it sound like the barrel is really whippy with the higher velocity and needed to be dampened. I told him I had one of those LimbSaver barrel de resonators laying around and would give it a try. I've used it in the past on an old 30-06 and it worked really well. They aren't easy to get on the barrel and move them around, but I set it up to give it last ditch try. I loaded up my last 9 bullets I had. First setting was halfway between the stock for-end and the muzzle brake. It was bad (see target with poor shot group on far right). Then I moved it about 3 inches forward. Better, but still not good (see the same photo but middle group). Moved the de resonator towards the muzzle so I still had enough room for the Magnetto. BINGO!!! A beautiful 0.39 moa group. I'm going to try this at 300 yards when I get more bullets, but looks like it should be a winner. </p><p>The Hail Mary worked, and maybe it can work for others that are having similar issues. I'm sure a tuner would work even better.</p></blockquote><p></p>
[QUOTE="dougduey, post: 2305308, member: 33159"] So, I hope this info may help others who are having issues with a rifle being finicky with Hammers at high velocities. My 280 AI was driving me crazy. It shoots the 143 HH at 3260 fps very accurately. Then the Absolute Hammers (the 140 HH in this case) came out, and seeing that I’m a velocity whore, I wanted to see how fast I could push them. I got them just over 3400 fps. Grouped great at 100 yards, but was terrible at 300. So I decided to try the 120 HH, plus I had Bean chirping in my ear about making this a laser beam. Using 6.5 StaBall powder, I found a 1.0 gr sized node at 3567 fps. ES of 19, SD 10.1. I was ecstatic until I started testing groups. It just wouldn’t group. So, I tried seating it out towards the lands one more PDR band (original COAL was set to the last PDR band). This helped, but still wasn’t a typical 0.5 moa or better Hammer group that I’m used to. I called and talk to Steve at Hammer Bullets. We had a possible “ah ha” moment when I told him it shot tight groups with the Magnetto Speed on but horrible without it. He said it sound like the barrel is really whippy with the higher velocity and needed to be dampened. I told him I had one of those LimbSaver barrel de resonators laying around and would give it a try. I’ve used it in the past on an old 30-06 and it worked really well. They aren’t easy to get on the barrel and move them around, but I set it up to give it last ditch try. I loaded up my last 9 bullets I had. First setting was halfway between the stock for-end and the muzzle brake. It was bad (see target with poor shot group on far right). Then I moved it about 3 inches forward. Better, but still not good (see the same photo but middle group). Moved the de resonator towards the muzzle so I still had enough room for the Magnetto. BINGO!!! A beautiful 0.39 moa group. I’m going to try this at 300 yards when I get more bullets, but looks like it should be a winner. The Hail Mary worked, and maybe it can work for others that are having similar issues. I’m sure a tuner would work even better. [/QUOTE]
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Reloading
Hammer Hunter Load Data, (See page 1, Post 8)
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