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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Fast Twist 270 Win vs. 6.8 Western
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<blockquote data-quote="budlight" data-source="post: 2087457" data-attributes="member: 2939"><p>Yes, I have a 9 twist rate 29 inch target barreled 270 win. It shoots 175 grain very well. Not enough powder capacity to shoot the 190's or maybe even 8 twist. The higher the velocity the less twist rate required to stabilize the bullet out to very long ranges. My barrel is also longer throated to shoot longer 169.5 VLD pills which makes it a single shot</p><p></p><p>I read up on the 6.8 but decreasing the case capacity of 10% less than the 270 WSM parent case and the longer throat to accommodate longer bullets. Which is the norm for many of the new rounds on the market. I was looking into the 6mm ARC. I already have 243 varminting rifles, so it was a nogo to the decreased ARC</p><p></p><p>So IMO the best option for heavy bullets is to use the biggest case volume for the slowest powders, the longer barrels for additional velocity, least twist practical for your heaviest pill. I also have a 270win AI and the 270 WSM. </p><p></p><p>They use fuzzy math to tell you that the 6.8 is better over 500 yards. But they are not talking Apples and Apples. They are talking higher heavier BC bullet in a 6.8 Well my same weight bullet with a 100-300 fps advantage will smoke the 6.8 at 500 yards on energy</p></blockquote><p></p>
[QUOTE="budlight, post: 2087457, member: 2939"] Yes, I have a 9 twist rate 29 inch target barreled 270 win. It shoots 175 grain very well. Not enough powder capacity to shoot the 190's or maybe even 8 twist. The higher the velocity the less twist rate required to stabilize the bullet out to very long ranges. My barrel is also longer throated to shoot longer 169.5 VLD pills which makes it a single shot I read up on the 6.8 but decreasing the case capacity of 10% less than the 270 WSM parent case and the longer throat to accommodate longer bullets. Which is the norm for many of the new rounds on the market. I was looking into the 6mm ARC. I already have 243 varminting rifles, so it was a nogo to the decreased ARC So IMO the best option for heavy bullets is to use the biggest case volume for the slowest powders, the longer barrels for additional velocity, least twist practical for your heaviest pill. I also have a 270win AI and the 270 WSM. They use fuzzy math to tell you that the 6.8 is better over 500 yards. But they are not talking Apples and Apples. They are talking higher heavier BC bullet in a 6.8 Well my same weight bullet with a 100-300 fps advantage will smoke the 6.8 at 500 yards on energy [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Fast Twist 270 Win vs. 6.8 Western
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