I'm waiting for the new 335 grain 6.5 bullet that has a 1.525 G1 BC
Why you wait, you could just whittle down a pencil or two and shoot those...
a 50 inch barrel and that puppy would really reach out there Pat...
on the other hand, maybe working with an arrow shaft might be easier...
Even though I'll only get 2000fps at the muzzle, at 2778 yards it over takes my 135gr bullet at 3150fps at the muzzle, in retained energy and velocity.
Where is the point of "diminishing return"?
It makes me chuckle sometimes....
Pat,
I think about that often. One of the many uses of a good ballistic calculator is to run the numbers comparing these sorts of scenarios. When a new and interesting bullet comes out, that's one of the first things I do when deciding if I want to give the bullet a whirl. For me, "diminishing returns" start to occur primarily when wind drift of the heavier, slower bullet exceeds that of lighter, faster bullets at ranges I'm going to shoot it at. Of course, if talking about a bullet to be used for hunting, if either bullet's velocity drops below the minimum velocity required for proper expansion at a distance less than the range I'm prepared to shoot game at, then that's also a case of "diminishing returns". I suppose the question can be thought of in the reverse direction, too; if a guy is dropping bullet weight and sacrificing BC in order to maximize muzzle velocity, where is the point of "diminishing return"?
If the increase in BC does not justify the increase in weight and the associated velocity loss, then that's the point of "diminishing return".
Because wind drift is my #1 concern, and since IME wind drift rarely goes up when switching to a heavier, slicker bullet launched at lower velocity (unless the bullet is poorly designed), I usually gravitate to heavier, slicker, and slightly slower bullets, as long as retained velocity is sufficient to initiate proper expansion when the bullet arrives on target (again, assuming hunting and not steel).
Thanks for bringing up the topic.