albat wrote:Sam45 all your answers here mate https://www.huntinggearguy.com/general/ ... inchester/
Sam45 wrote:Hey Guys, round the traps of late it seems that the 6.5 Creedmoor is the go to cal for long range.I certainly have NFI in regards to this round.
Now where does it sit in the tree of calibres ?
Is it a bigger cal than a .308?
Is it a viable hunting round?
Or is it a fancy overpriced round?
Thanks in advance. As I know there are a few here with some great knowledge
Ozzie Reviews just uploaded this :
https://youtu.be/vGSKWjzntDU
sungazer wrote:It is well liked in the target guns F open for the long range a flatter trajectory and used for 1000yrds. However IMHO it does lose its energy rather fast the recommended 1000ft/lb for killing things ethically is lost at about 400m. Therefore the hunting side of it again IMHO is not as versatile as the 308.
I have 243 and before I bought it I thought yeah great gun not as much recoil lighter and flatter so not so much to worry about when out in the field.
All that is true however it makes as much noise if not more than the 308. I would have liked a long range flat less recoil and quite. I guess you cant have everything.
duncan61 wrote:I wrote to a barrel maker over East recently about re chambering my .243 to a suitable long range target rifle and their recommendation was 260 Rem or 6.5 Creedmoor.I did lead with the suggestion of 7/08 but it was dismissed as a long range target round.I wonder is there any foundation in this theory.Could .5 mill make that big a difference???
duncan61 wrote:150 GR. SIE HPBT AR2209 .284" 2.800" 42.0 2549 40600 cup 45.4 2724 51500 cup 7mm/08
142 GR. SIE HPBT AR2209 .264" 2.780" 38.8 2573 52300 psi 41.5 2694 59800 psi 6.5 CR
142 GR. SIE HPBT AR2208 .264" 2.350" 27.9 2250 40900 cup 29.7 2396 49600 cup 6.5 BR
142 GR. SIE HPBT AR2209 .264" 2.780" 41.5 2590 50100 psi 44.5 2735 58000 psi 260 Rem
I am not seeing a big difference can some one enlighten me why one is so much better than another it looks like personal choice and how much you are willing to spend
Gamerancher wrote:With regards comparisons between 6.5, 7mm and .308cal, as can be seen in the information below, for the given 2500f/s velocity the 6.5 shoots both flatter with less wind drift and better retained energy at long range than both the 7mm and .308 calibre bullets.
This is why the various 6.5mm's are very popular in long range shooting.
Yes, it is a slightly lighter bullet and yes, you can get higher velocities out of each, but this is only a "for instance" example. Trying to compare apples and apples.
6.5 Creedmoor
Ballistic Coefficient 0.626 Velocity (ft/s) 2500 Weight (grains) 142
Maximum Range (yds) 600 Interval (yds) 100 Drag Function G1
Sight Height (inches) 1.5 Shooting Angle (degrees) 0 Zero Range (yds) 200
Wind Speed (mph) 10 Wind Angle (degrees) 90 Altitude (ft) 1000
Pressure (hg) 29.53 Temperature (F) 75 Humidity (%) 0.78
Ballistics Results - 6.5 Creedmoor
RANGE (YARDS) VELOCITY (FPS) ENERGY (FT.-LB.) TRAJECTORY (IN) WIND DRIFT (IN)
Muzzle 2500 1971 -1.5
100 2373 1775 2.2 0.6
200 2250 1596 0 2.3
300 2130 1430 -9.2 5.3
400 2014 1279 -26.1 9.7
500 1902 1140 -51.6 15.6
600 1794 1014 -86.7 23.1
7-08 Rem
Ballistic Coefficient 0.429 Velocity (ft/s) 2500 Weight (grains) 150
Maximum Range (yds) 600 Interval (yds) 100 Drag Function G1
Sight Height (inches) 1.5 Shooting Angle (degrees) 0 Zero Range (yds) 200
Wind Speed (mph) 10 Wind Angle (degrees) 90 Altitude (ft) 1000
Pressure (hg) 29.53 Temperature (F) 75 Humidity (%) 0.78
Ballistics Results - 7-08
RANGE (YARDS) VELOCITY (FPS) ENERGY (FT.-LB.) TRAJECTORY (IN) WIND DRIFT (IN)
Muzzle 2500 2082 -1.5 0
100 2316 1786 2.5 0.9
200 2139 1524 0 3.5
300 1971 1294 -10.1 8.1
400 1811 1092 -29.4 14.9
500 1660 918 -58.9 24.2
600 1521 770 -101.3 36.4
.308 Win
Ballistic Coefficient 0.390 Velocity (ft/s) 2500 Weight (grains) 150
Maximum Range (yds) 600 Interval (yds) 100 Drag Function G1
Sight Height (inches) 1.5 Shooting Angle (degrees) 0 Zero Range (yds) 200
Wind Speed (mph) 10 Wind Angle (degrees) 90 Altitude (ft) 1000
Pressure (hg) 29.53 Temperature (F) 75 Humidity (%) 0.78
Ballistics Results - .308 Win
RANGE (YARDS) VELOCITY (FPS) ENERGY (FT.-LB.) TRAJECTORY (IN) WIND DRIFT (IN)
Muzzle 2500 2082 -1.5
100 2298 1758 2.6 1
200 2105 1476 0 3.8
300 1922 1230 -10.4 9
400 1749 1019 -30.3 16.7
500 1589 841 -61.6 27.2
600 1442 693 -106.7 41
Gamerancher wrote:Reply to Gwion,
Yes, it does. The 6.5 still has the edge though. I have both and my results have been in line with the data. I used to have a 6.5mm/.257 Ackley. That thing would send Sierra 155gr match kings down range @ 3000f/s, shot flat and straight, would put 1 & 1/2 " 5 shot groups @ 500m. Bit hard on throats though.
140gr 7mm .510BC.
Muzzle 2500 1943 -1.5 0
100 2344 1709 2.4 0.7
200 2195 1497 0 2.9
300 2050 1307 -9.7 6.7
400 1912 1136 -27.6 12.2
500 1779 984 -55.1 19.7
600 1654 850 -93.6 29.4
sungazer wrote:However on my hunting rifles I like the First Focal Plane...
Gamerancher wrote:Reply to Bladeracer, et al,
So maybe one apple was a"granny-smith" Still , was implying similar weights at same MV's.
Yes, as I said, you can change the ingredients for the various calibres and the results will be different.( please refer to the 1st line of my original post)
As for the 180gr 7mm ELD-M, you 'aint running that bullet in an "off the shelf" 7-08 rifle either.
You need a 1 in 8" twist rate to run the 142gr 6.5mm. Pretty sure any factory rifle chambered in 6.5 Creedmoor will have 1 in 8".
I built mine with a 1 in 7.5" twist rate, just because.
Also can't find the bullet you are refering to,"130gr, .335BC". Just had a quick look and found numerous 6.5's from 108gr and up and all had BC's above .450.
Even a Hornady interlock, a spire point, flat based hunting bullet has a BC of .445.
Sierra don't make the 6.5mm 155gr MK's anymore, pity, they were a great bullet.
bladeracer wrote:Gamerancher wrote:Reply to Bladeracer, et al,
So maybe one apple was a"granny-smith" Still , was implying similar weights at same MV's.
Yes, as I said, you can change the ingredients for the various calibres and the results will be different.( please refer to the 1st line of my original post)
As for the 180gr 7mm ELD-M, you 'aint running that bullet in an "off the shelf" 7-08 rifle either.
You need a 1 in 8" twist rate to run the 142gr 6.5mm. Pretty sure any factory rifle chambered in 6.5 Creedmoor will have 1 in 8".
I built mine with a 1 in 7.5" twist rate, just because.
Also can't find the bullet you are refering to,"130gr, .335BC". Just had a quick look and found numerous 6.5's from 108gr and up and all had BC's above .450.
Even a Hornady interlock, a spire point, flat based hunting bullet has a BC of .445.
Sierra don't make the 6.5mm 155gr MK's anymore, pity, they were a great bullet.
Similar weights at similar MV would be fine if you're comparing bullets in the same caliber. Not in different calibers. A larger caliber requires a heavier bullet to offer similar ballistics. If that caliber also allows higher velocity then clearly that is an advantage also.