If your getting a 12 inch group the only thing you can change is the bullet period. Powder, or amount of powder, or primer, or case ain't going to matter. It won't matter how much care you take to load them either. If your gun will shoot a half inch group with one bullet then i'm pretty sure you could have a 3 grain variance in how much powder is in each case with the load with the ballistic tips and it would still shoot better than that.
I have a 257 scramjet that would not shoot a 100 grain barnes bullet and hit a two foot by two foot target every time at 100 yards, and a 100 grain partition with the same powder and primer and case would go in a 1/2 inch on the same day for three shots.
Who knows why it doesn't work ? I can tell you at 12 inches for a group you will burn a bunch of powder and never get it fixed.
The day I tried twenty barnes bullets through my scramjet I thought it was the worst money I had ever spent having my first custom rifle built. But I tried the partitions that day before I left and relized the bullet I wanted to shoot wasn't going to shoot and now I've shot a bunch of diferent bullets through that rifle and all of them shoot good but the barnes.
I can tell you when you have that much money in a gun and you don't know where the next bullet will hit at 100 yards it's a wierd feeling. It's a worse feeling knowing something so close to the same load shoots great because it just doesn't make since.
And worse than that the barnes were the first twenty out of the rifle, it was a bad feeling. I was shooting one and then clean for the first twenty.
I have a 257 scramjet that would not shoot a 100 grain barnes bullet and hit a two foot by two foot target every time at 100 yards, and a 100 grain partition with the same powder and primer and case would go in a 1/2 inch on the same day for three shots.
Who knows why it doesn't work ? I can tell you at 12 inches for a group you will burn a bunch of powder and never get it fixed.
The day I tried twenty barnes bullets through my scramjet I thought it was the worst money I had ever spent having my first custom rifle built. But I tried the partitions that day before I left and relized the bullet I wanted to shoot wasn't going to shoot and now I've shot a bunch of diferent bullets through that rifle and all of them shoot good but the barnes.
I can tell you when you have that much money in a gun and you don't know where the next bullet will hit at 100 yards it's a wierd feeling. It's a worse feeling knowing something so close to the same load shoots great because it just doesn't make since.
And worse than that the barnes were the first twenty out of the rifle, it was a bad feeling. I was shooting one and then clean for the first twenty.
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