Data does not have to be yours, others have published data and it can be searched forI’m not in the game of wasting money for internet experiments that I find impractical. That said having a short rifle sure is practical, but overall I don’t think caliber of choice should have any bearing on how short you should go based on it being better at being short.
Simply stating what Iv found with the rifles that I have used. Cutting them down regardless of being a caliber that in internet theory losses less velocity, does the same that most other ones do.
I think barrel to barrel speed and SDs make this an exercise in futility without spending more than is reasonable for most. Iv read plenty of articles, and seen it on here plenty. 20-40 fps per inch I believe could happen with about any caliber.
Your 300 win mag example assumes that both cases are making the same velocity. The 300 is creating a lot more energy, it only makes sense that it would lose more in fps, and could be the same proportionally. Both cases losing 10% of velocity is not the same number.
That said I think people need to look at what they need for impact velocity at their given range and choose a realistic and safe to run round. If I want 2800 out of a 18 or 20” rifle I wouldn’t be basing my decision on how much the caliber is supposed to lose per inch or reloading the difference.
Reloading is a whole different conversation. I can make my creedmoor shoot closer to a PRC too. But then I’d have to carry a hammer to open my bolt when it rains.
No, my example does not assume they are making the same velocity. Data I have seen sugest a 300 win mag looses
Are you arguing that if someone is selecting a new rifle and chambering for a short barrel they should pay no attention to which chambering will perform the best? Even in percentage terms, the 300 win mag looses more per inch than a 308.
308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28″ to 16.5″)
308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28″ to 16.5″) Introduction Released by Winchester in 1952 (and adopted by NATO in 1954 as the 7.62x51mm NATO), the 308 Wi…
rifleshooter.com
I think I know who just has "internet theory." Such theory almost always starts with a failure to look at available data, then disparaging the data based statements of others.
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