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Hunting
Long Range Hunting & Shooting
Does bullet stability drop of with velocity??
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<blockquote data-quote="proload" data-source="post: 515650" data-attributes="member: 34261"><p>Hi there,</p><p></p><p>I'm developing a hunting load (up to red deer sized game) in my 243 Win with the Swift Scirocco 90 gr (My barrel twist 1 in 10") and I think that I am seeing evidence of "very slight" instability (yawing) by analyzing the holes in my targets. I can't see how I will get good accuracy if the bullet is unstable, so I got on to a bullet stability calculator. The best result from the calculator is that the bullet is unstable/marginally stable (1 in 10", 3250 fps, Projectile Length 1.135"), and I am wondering if it's even worth trying to tweak my load, or if I'm on a hiding to nothing.</p><p></p><p>Everyone that I speak to says that this projectile should stabilize, but the maths/science says to me that I'm wasting my time?</p><p></p><p>I guess what I'm asking is this:</p><p></p><p>1. Am I wasting my time?</p><p>2. Will the bullet become even less stable in flight (as the velocity drops off) or not.</p><p>3. Will I be better off using a 85gr Nosler Partition? The stability calculator claims that this bullet is better suited to my set up.</p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="proload, post: 515650, member: 34261"] Hi there, I'm developing a hunting load (up to red deer sized game) in my 243 Win with the Swift Scirocco 90 gr (My barrel twist 1 in 10") and I think that I am seeing evidence of "very slight" instability (yawing) by analyzing the holes in my targets. I can't see how I will get good accuracy if the bullet is unstable, so I got on to a bullet stability calculator. The best result from the calculator is that the bullet is unstable/marginally stable (1 in 10", 3250 fps, Projectile Length 1.135"), and I am wondering if it's even worth trying to tweak my load, or if I'm on a hiding to nothing. Everyone that I speak to says that this projectile should stabilize, but the maths/science says to me that I'm wasting my time? I guess what I'm asking is this: 1. Am I wasting my time? 2. Will the bullet become even less stable in flight (as the velocity drops off) or not. 3. Will I be better off using a 85gr Nosler Partition? The stability calculator claims that this bullet is better suited to my set up. Cheers [/QUOTE]
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Does bullet stability drop of with velocity??
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