The following 2 statements have been bugging me a bit.
1. A lighter bullet travelling faster spends less time in the wind so therefore should drift less that a heavier higher bc bullet going slower.
2. A certain bullet is too heavy for a certain case to take advantage of a higher bc heavier bullet.
I know frank has said that he like lighter bullets traveling faster however he is speaking from a PRS type view where someone might have to shoot unknown distances and from compromised positions here a lighter Bullet travelling faster could be an advantage.
My thoughts are for prone shooting at known distances. Why is it that in f class the guys shooting 308 are usually shooting heavy 200g+ bullets because they are better in the wind.
it seems that if a heavier higher bc bullet is pushed to an equivalent pressure/muzzle energy the heavier bullet will drift less every time. Don't ballistic calculators allow for the time the bullet is spending in flight? Ie so even though the heavier bullet is slower and spending more time in the wind it drifts less??
An example is the 6.5x47l let's say someone is running a 123eld bullet at 2900fps the equivalent velocity based on muzzle energy for a 147 eld is 2652fps. The 147 eld despite going much slower still has less wind drift at all distances and the advantage grows the further you get. This is assuming similar accuracy can be gained from both bullets at the equivalent pressure/muzzle energy. If someone says well you can run the 123 at 3000fps at x pressure well shouldn't you be able to run your 147at a higher velocity also to match that pressure/muzzle energy??
So why is it said that for example a 147 eld is too heavy for a 6.5x47l or a 215g too heavy for a 308. The ballistics for known distance shooters seems to favour the heavier higher bc bullet going slower despite the extra time it spends in the wind?
What am I missing here?
Thanks
1. A lighter bullet travelling faster spends less time in the wind so therefore should drift less that a heavier higher bc bullet going slower.
2. A certain bullet is too heavy for a certain case to take advantage of a higher bc heavier bullet.
I know frank has said that he like lighter bullets traveling faster however he is speaking from a PRS type view where someone might have to shoot unknown distances and from compromised positions here a lighter Bullet travelling faster could be an advantage.
My thoughts are for prone shooting at known distances. Why is it that in f class the guys shooting 308 are usually shooting heavy 200g+ bullets because they are better in the wind.
it seems that if a heavier higher bc bullet is pushed to an equivalent pressure/muzzle energy the heavier bullet will drift less every time. Don't ballistic calculators allow for the time the bullet is spending in flight? Ie so even though the heavier bullet is slower and spending more time in the wind it drifts less??
An example is the 6.5x47l let's say someone is running a 123eld bullet at 2900fps the equivalent velocity based on muzzle energy for a 147 eld is 2652fps. The 147 eld despite going much slower still has less wind drift at all distances and the advantage grows the further you get. This is assuming similar accuracy can be gained from both bullets at the equivalent pressure/muzzle energy. If someone says well you can run the 123 at 3000fps at x pressure well shouldn't you be able to run your 147at a higher velocity also to match that pressure/muzzle energy??
So why is it said that for example a 147 eld is too heavy for a 6.5x47l or a 215g too heavy for a 308. The ballistics for known distance shooters seems to favour the heavier higher bc bullet going slower despite the extra time it spends in the wind?
What am I missing here?
Thanks