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  #31  
Old 06-13-2016, 01:52 PM
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Originally Posted by 209x50 View Post
There are a lot of things that affect the flight of a bullet. Many times the wrong factor is credited with the results. BC of a bullet and how well it does in the wind is a pure math calculation. Mass (the weight) is already accounted for in the BC calculation. So a heavy bullet and a light bullet of the same BC and velocity being equal will have the same wind drift.
I think what he meant is the bullet with the higher BC value. Heavier bullets usually have a higher BC than lighter bullets of equal design.

Muzzle velocity is momentary and bleeds off quickly, but BC, like a diamond, is forever. The stronger the wind and the worse the conditions, the greater advantage a higher BC has.
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  #32  
Old 06-13-2016, 01:52 PM
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Originally Posted by Robmcleod82 View Post
I meant literally find like in stock
Lapua brass and your bullet(s) of choice. Availability matters
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  #33  
Old 06-13-2016, 05:10 PM
duceman duceman is offline
 
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7-08.. just cuz...................
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  #34  
Old 06-14-2016, 06:22 AM
tchardy1972 tchardy1972 is offline
 
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Originally Posted by 209x50 View Post
There are a lot of things that affect the flight of a bullet. Many times the wrong factor is credited with the results. BC of a bullet and how well it does in the wind is a pure math calculation. Mass (the weight) is already accounted for in the BC calculation. So a heavy bullet and a light bullet of the same BC and velocity being equal will have the same wind drift.
It's the same reason the guys that shoot a 223 with 90 grain vlds are constantly being beat by the 308 guys. If you look at the b.c. numbers, they shouldn't . The heavy bulletis less affected when the air gets bumpy.
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  #35  
Old 06-14-2016, 06:24 AM
6.5x47 lapua 6.5x47 lapua is offline
 
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Quote:
Originally Posted by 209x50 View Post
There are a lot of things that affect the flight of a bullet. Many times the wrong factor is credited with the results. BC of a bullet and how well it does in the wind is a pure math calculation. Mass (the weight) is already accounted for in the BC calculation. So a heavy bullet and a light bullet of the same BC and velocity being equal will have the same wind drift.
take a 90 grain vld bullet in 223 versus a 185 grain vld bullet with roughly the same velocity and bc out on a windy day and you will find out how wrong this theory is.bullet weight does make a difference with wind drift.This has been tried many times by alot of the top shooters in the world and the results do not change.Sometimes the math is trumped by good old fashioned experience.
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  #36  
Old 06-14-2016, 07:12 AM
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Negative. Bullet weight is already accounted for in the BC value. The math related to external ballistics is quite advanced and well-understood, which is why BC values and ballistic calculators are typically very accurate, and closely representative of real-world results. If experience doesn't jive with the math, it's because you've missed some other factor that affects the results. In this case, spin drift and issues surrounding stability play a part in how a 90 and 185 VLD compare in the wind.
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  #37  
Old 06-14-2016, 07:53 AM
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Originally Posted by tchardy1972 View Post
It's the same reason the guys that shoot a 223 with 90 grain vlds are constantly being beat by the 308 guys. If you look at the b.c. numbers, they shouldn't . The heavy bulletis less affected when the air gets bumpy.
These comparisons are usually brought up at 1000 yards where the tiny cased 223 has a major disadvantage in starting the long bullet fast enough out of the barrel to maintain enough speed for stability out at that distance. Stability is the factor here not the BC. As speed drops the bullet starts to destabilize in the 223.
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  #38  
Old 06-14-2016, 11:30 AM
6.5x47 lapua 6.5x47 lapua is offline
 
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Quote:
Originally Posted by Jordan Smith View Post
Negative. Bullet weight is already accounted for in the BC value. The math related to external ballistics is quite advanced and well-understood, which is why BC values and ballistic calculators are typically very accurate, and closely representative of real-world results. If experience doesn't jive with the math, it's because you've missed some other factor that affects the results. In this case, spin drift and issues surrounding stability play a part in how a 90 and 185 VLD compare in the wind.
wrong again.bullet weight plays more into the factor than the numbers show.this has been proven by dozens of the top shooters in the world through real world testing.and yes they are all aware of the theoretical numbers game of bc.i really doubt dozens of the top shooters are "missing something".
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  #39  
Old 06-14-2016, 11:57 AM
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Originally Posted by 6.5x47 lapua View Post
take a 90 grain vld bullet in 223 versus a 185 grain vld bullet with roughly the same velocity and bc out on a windy day and you will find out how wrong this theory is.bullet weight does make a difference with wind drift.This has been tried many times by alot of the top shooters in the world and the results do not change.Sometimes the math is trumped by good old fashioned experience.
Not really wanting to get into this, but can you confirm which 223 projectile has the same B.C as the 185gr?

BC does account for bullet weight and design. There is a middle ground where long, slender projectiles have very high B.C's due to their shape AND weight. Hence the recent rage of the 6-6.5, and 7mm. For example, the 185gr 30Cal has an issue of a worse bullet design, and weight that's heavier. The added weight bumps the B.C, but won't be the same as a bullet that is lighter, has a better profile and can likely be pushed harder.

Compare the 185gr 30 cal to the 208 gr 30cal. Same thing. Those bullets are long, slender and heavy. Hence the higher B.C.
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  #40  
Old 06-14-2016, 12:22 PM
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Originally Posted by 6.5x47 lapua View Post
wrong again.bullet weight plays more into the factor than the numbers show.this has been proven by dozens of the top shooters in the world through real world testing.and yes they are all aware of the theoretical numbers game of bc.i really doubt dozens of the top shooters are "missing something".
Who are these "dozens of top shooters in the world", and what exactly did they prove? Name dropping and using your associations with other people as a trump card only goes so far. Without empirical data your anecdotal conclusions mean relatively little. I know of some top world competitors who would disagree with you, so you see how that works. I have also personally popped tens of thousands of primers, to be conservative, and if accurate data is used, the theory and field results always jive very closely. In the cases that it hasn't, published data wasn't accurate, or I was missing something. When it comes to data, garbage in=garbage out.
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  #41  
Old 06-14-2016, 05:06 PM
6.5x47 lapua 6.5x47 lapua is offline
 
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Quote:
Originally Posted by Jordan Smith View Post
Who are these "dozens of top shooters in the world", and what exactly did they prove? Name dropping and using your associations with other people as a trump card only goes so far. Without empirical data your anecdotal conclusions mean relatively little. I know of some top world competitors who would disagree with you, so you see how that works. I have also personally popped tens of thousands of primers, to be conservative, and if accurate data is used, the theory and field results always jive very closely. In the cases that it hasn't, published data wasn't accurate, or I was missing something. When it comes to data, garbage in=garbage out.
just stay watching reruns of "shooter" in moms basement son. Or come out to a match and school us .its really easy to talk the talk when you are the only one watching isnt it.myself on the other hand i tend to want to shoot against the best in canada all the time and the best in the world at the canadians every year.
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  #42  
Old 06-14-2016, 05:50 PM
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That's what I thought.
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  #43  
Old 06-14-2016, 08:29 PM
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Originally Posted by Smokinyotes View Post
I would go with a 260AI.
X 2
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  #44  
Old 06-15-2016, 01:09 PM
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260

Been stocking up with a bunch of bullets and brass for that round.
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  #45  
Old 06-15-2016, 03:52 PM
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It was a hard choice. I went with a 260rem but sort of wishing I went 6.5x55. My other option was the 7-08! I wish I had gotten the swede as I had my mind made up on buying a tikka. I hadn't realized at the time that they only use one action length. Knowing that I would have gotten the swede that was sitting right beside it!


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  #46  
Old 12-18-2016, 08:55 PM
Duramaximos Duramaximos is offline
 
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Originally Posted by BigRedJeep View Post
It was a hard choice. I went with a 260rem but sort of wishing I went 6.5x55. My other option was the 7-08! I wish I had gotten the swede as I had my mind made up on buying a tikka. I hadn't realized at the time that they only use one action length. Knowing that I would have gotten the swede that was sitting right beside it!


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Just went through the same thought process and decided on the swede. In my case rebarreling a great BSA action.

Love the 6.5's.
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  #47  
Old 12-19-2016, 10:39 PM
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Originally Posted by 7mmremmag View Post
260Rem
Good brass from Lapua
6.5 Bullets have a good BC
Less recoil

but 260 is boring, All the cool kids are shooting 6.5x47L lol (I had too)
I agree but 6.5x55 would get the nod from me.
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  #48  
Old 12-20-2016, 07:06 AM
Beeman3 Beeman3 is offline
 
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Quote:
Originally Posted by 7mmremmag View Post
260Rem
Good brass from Lapua
6.5 Bullets have a good BC
Less recoil

but 260 is boring, All the cool kids are shooting 6.5x47L lol (I had too)
There I never said it but totally agree.
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  #49  
Old 12-20-2016, 08:45 AM
bubba300 bubba300 is offline
 
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I love the 6.5"s,I use a creedmore for deer(129 LRAB) and 6.5 - 06 for long range target .
As for hunting long range I use a 7mm RM and 168 LRAB .
I think the 7mm-08 would be a better hunting rifle because of larger bullets but that doesn't mean your gun would shoot them. I think the 260 would be a better target rifle but I have never had a 7 -08 or a 260 but always wanted one to play with them.
Comparing 140 gr bullets in each the 6.5 has better ballistics.Just my 2 cents.
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  #50  
Old 12-20-2016, 07:19 PM
Duramaximos Duramaximos is offline
 
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Quote:
Originally Posted by bubba300 View Post
I love the 6.5"s,I use a creedmore for deer(129 LRAB) and 6.5 - 06 for long range target .
As for hunting long range I use a 7mm RM and 168 LRAB .
I think the 7mm-08 would be a better hunting rifle because of larger bullets but that doesn't mean your gun would shoot them. I think the 260 would be a better target rifle but I have never had a 7 -08 or a 260 but always wanted one to play with them.
Comparing 140 gr bullets in each the 6.5 has better ballistics.Just my 2 cents.
Hope the op wont mind a slight derail....what's your recipe for the 6.5-06?
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  #51  
Old 12-20-2016, 10:27 PM
Sneeze Sneeze is offline
 
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Quote:
Originally Posted by Jordan Smith View Post
That's what I thought.
Sorry Jordan, what you are suggesting would violate the basic laws of physics!

It doesn't have to be proved in the field by top shooters. A smart 1st year university student in a stem program could make you wrong on paper.

Big bullets matter at big ranges.

That being said I like fast bullets that go thwaaap when they hit stuff. So go 260.
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  #52  
Old 12-21-2016, 01:18 PM
bubba300 bubba300 is offline
 
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Quote:
Originally Posted by Duramaximos View Post
Hope the op wont mind a slight derail....what's your recipe for the 6.5-06?
140 Berger VLD Target - 51 grs H4831sc
139 lapua scenar-50.5 H4831sc
I had good luck with N165 Viht and N560
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  #53  
Old 12-21-2016, 03:07 PM
Bigmountainrider Bigmountainrider is offline
 
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John,
My opinion is buy a gun that fits, then be a better hunter and shoot them inside 300M. I know your pretty good to 500M. but still. Just poking fun bud.
Z
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  #54  
Old 12-21-2016, 09:27 PM
Duramaximos Duramaximos is offline
 
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Quote:
Originally Posted by bubba300 View Post
140 Berger VLD Target - 51 grs H4831sc
139 lapua scenar-50.5 H4831sc
I had good luck with N165 Viht and N560
Thanks for sharing.

Im running 49.5 gr H4831sc behind 140gr SMK or SGK. Bug holes!
Also getting decent groups with 129 ABLR and 51.5 gr h4831sc.
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  #55  
Old 12-21-2016, 09:34 PM
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Originally Posted by Bigmountainrider View Post

John,
My opinion is buy a gun that fits, then be a better hunter and shoot them inside 300M. I know your pretty good to 500M, but still.

Just poking fun bud.

Z
You little... Come show me how it's done, then !

I'll get better, it's inevitable. And you've seen 1st-hand what my loads do to them under 300m !

Thanks guys, but any big purchases got put on hold. Lay-offs are great...
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  #56  
Old 01-12-2017, 02:37 AM
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I just had to find a Shilen prefit Savage barrel for sale tonight, in .260 REM...

Aaaand, it's in Alberta.

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  #57  
Old 01-12-2017, 04:39 AM
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Info enough...7-08.
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  #58  
Old 01-12-2017, 04:52 AM
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Having owned both, I prefer the 7-08. Bullets are ALWAYS easier to find. In my experience, accurate loads were of lower velocity than I would have liked with the 260.The 7-08 didn't seem to care so much. But maybe that's just the rifles I have.
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  #59  
Old 01-12-2017, 06:42 AM
buschy03 buschy03 is offline
 
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Quote:
Originally Posted by BigRedJeep View Post
It was a hard choice. I went with a 260rem but sort of wishing I went 6.5x55. My other option was the 7-08! I wish I had gotten the swede as I had my mind made up on buying a tikka. I hadn't realized at the time that they only use one action length. Knowing that I would have gotten the swede that was sitting right beside it!


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Just go for a 6.5x55 swede and be done with it,,, could of saved you 3 pages of reading,,,lol..close enough to a 260.....
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  #60  
Old 01-12-2017, 06:46 AM
Bigmountainrider Bigmountainrider is offline
 
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Quote:
Originally Posted by J0HN_R1 View Post
I just had to find a Shilen prefit Savage barrel for sale tonight, in .260 REM...

Aaaand, it's in Alberta.

Bob Jury out of Redeer, just made me two Savage prefit barrels for the 308, My testing as of now is awesome. His turn around time for your custom contour, chamber, and length is about 4 weeks. Stop by the house and take a look.

Z
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