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Rifles, Reloading, Optics, Equipment
Reloading
Changing primer improved accuracy by 1.5MOA is that even possible?
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<blockquote data-quote="Chase723" data-source="post: 1735847" data-attributes="member: 21524"><p>The PRB did a test looking at ES/SD w/ different primers and found that there was definitely a difference with different primers. Personally, the only ones I've ever used are Federal and Winchester, and I've had excellent results with both across several rifles. That being said, the thought of even buying and trying several different types of primers for load development doesn't cross my mind at all. Get a match grade barrel and free float it. It'll solve the vast majority of "problems" and reloading for one is easy. To the point that when I buy a barrel in the caliber/cartridge that I want I typically decide what bullet I want to shoot out of it first and then spec the barrel so that I expect that it'll shoot it. I.e. with the correct twist and enough barre length to generate the velocity to guarantee it'll stabilize it, and will perform at the distance I intend to shoot it at. At that point there's no reason it shouldn't.</p><p></p><p>For perspective, I just re-did some load development for a 6.5 Creed that had a little throat erosion and stopped consistently shooting 1/3 MOA. The bullets I was previously using couldn't be seated long enough anymore to stay in the case to chase the lands. So I bought 500 130gr Berger hybrids on the premise that 1) They are jump tolerant 2) They should stabilize in a 1:8 twist and 3) They should be long enough to get me 20-30 thousandths off the lands and still fit in my magazine. That all materialized and in less than 20 rounds I had a load that shoots 1/3 MOA at 300. The wind was constantly shifting and gusting 35mph so I haven't used it at 500 yet but my expectation is that it's going to pretty decent.</p></blockquote><p></p>
[QUOTE="Chase723, post: 1735847, member: 21524"] The PRB did a test looking at ES/SD w/ different primers and found that there was definitely a difference with different primers. Personally, the only ones I’ve ever used are Federal and Winchester, and I’ve had excellent results with both across several rifles. That being said, the thought of even buying and trying several different types of primers for load development doesn’t cross my mind at all. Get a match grade barrel and free float it. It’ll solve the vast majority of “problems” and reloading for one is easy. To the point that when I buy a barrel in the caliber/cartridge that I want I typically decide what bullet I want to shoot out of it first and then spec the barrel so that I expect that it’ll shoot it. I.e. with the correct twist and enough barre length to generate the velocity to guarantee it’ll stabilize it, and will perform at the distance I intend to shoot it at. At that point there’s no reason it shouldn’t. For perspective, I just re-did some load development for a 6.5 Creed that had a little throat erosion and stopped consistently shooting 1/3 MOA. The bullets I was previously using couldn’t be seated long enough anymore to stay in the case to chase the lands. So I bought 500 130gr Berger hybrids on the premise that 1) They are jump tolerant 2) They should stabilize in a 1:8 twist and 3) They should be long enough to get me 20-30 thousandths off the lands and still fit in my magazine. That all materialized and in less than 20 rounds I had a load that shoots 1/3 MOA at 300. The wind was constantly shifting and gusting 35mph so I haven’t used it at 500 yet but my expectation is that it’s going to pretty decent. [/QUOTE]
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Changing primer improved accuracy by 1.5MOA is that even possible?
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