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Why do some of you guys want a 6.5CM over a 6CM?
- Thread starter JGorski
- Start date
Re: Why do some of you guys want a 6.5CM over a 6CM?
I went with the 6.5 because I already had a wicked accurate 243. I was digging in the back of the safe this morning and bumped into a 14twist 243AI xr100r (medium range p. dog gun) that I had completely forgotten I had. I already had the 6mm bases covered when I took an interest in the Creedmoor case.
This could be a fun thread, but we're going to be splitting hairs for sure.
All things being equal, the 6.5 will have better barrel life and the 6mm may have a slight ballistic advantage.
I went with the 6.5 because I already had a wicked accurate 243. I was digging in the back of the safe this morning and bumped into a 14twist 243AI xr100r (medium range p. dog gun) that I had completely forgotten I had. I already had the 6mm bases covered when I took an interest in the Creedmoor case.
This could be a fun thread, but we're going to be splitting hairs for sure.
All things being equal, the 6.5 will have better barrel life and the 6mm may have a slight ballistic advantage.
Re: Why do some of you guys want a 6.5CM over a 6CM?
Barrel life is better on the 6.5, However most guys on here shoot about 30 rounds through their guns and then put them up or sell them, so if thats the case get the 6cm. It will have the advantage for LR.
Barrel life is better on the 6.5, However most guys on here shoot about 30 rounds through their guns and then put them up or sell them, so if thats the case get the 6cm. It will have the advantage for LR.
Re: Why do some of you guys want a 6.5CM over a 6CM?
I can buy genuine quality match ammo "cheap", barrel life and Im not a serious enough competitor that saving a couple tenths of a mil in drop or wind is worth restricting myself to reloading only.
I can buy genuine quality match ammo "cheap", barrel life and Im not a serious enough competitor that saving a couple tenths of a mil in drop or wind is worth restricting myself to reloading only.
Re: Why do some of you guys want a 6.5CM over a 6CM?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BobcatT870</div><div class="ubbcode-body">Barrel life is better on the 6.5, However most guys on here shoot about 30 rounds through their guns and then put them up or sell them, so if thats the case get the 6cm. It will have the advantage for LR. </div></div>
Laffin. My 6.5 Creedmoor has caused me to neglect all of my other rifles except my 300WM. I've been looking for a do it all chambering for 15 years. The 6.5 Creedmoor is pretty damn close. I'll keep the 300 in tune for the rare occasions when I have the opportunity to shoot 800 plus.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BobcatT870</div><div class="ubbcode-body">Barrel life is better on the 6.5, However most guys on here shoot about 30 rounds through their guns and then put them up or sell them, so if thats the case get the 6cm. It will have the advantage for LR. </div></div>
Laffin. My 6.5 Creedmoor has caused me to neglect all of my other rifles except my 300WM. I've been looking for a do it all chambering for 15 years. The 6.5 Creedmoor is pretty damn close. I'll keep the 300 in tune for the rare occasions when I have the opportunity to shoot 800 plus.
Re: Why do some of you guys want a 6.5CM over a 6CM?
Energy on target should I choose to hunt with it. Personally though I have a severe addiction to anything 6.5.
Energy on target should I choose to hunt with it. Personally though I have a severe addiction to anything 6.5.
Re: Why do some of you guys want a 6.5CM over a 6CM?
6mm has less recoil and better ballistics.
Although shooting the 6.5 creed with 130 JLK's at 3050, there is honestly not much that can touch that ballistically. Not even the 6mm really. It might but the 6mm pill would have to be just screaming!
Ballistic advantage? Hard to say for sure which one. I'm actually leaning at saying the 6.5
6mm has less recoil and better ballistics.
Although shooting the 6.5 creed with 130 JLK's at 3050, there is honestly not much that can touch that ballistically. Not even the 6mm really. It might but the 6mm pill would have to be just screaming!
Ballistic advantage? Hard to say for sure which one. I'm actually leaning at saying the 6.5
Re: Why do some of you guys want a 6.5CM over a 6CM?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jcvibby</div><div class="ubbcode-body">6mm has less recoil and better ballistics.
Although shooting the 6.5 creed with 130 JLK's at 3050, there is honestly not much that can touch that ballistically. Not even the 6mm really. It might but the 6mm pill would have to be just screaming!
Ballistic advantage? Hard to say for sure which one. I'm actually leaning at saying the 6.5
</div></div>
How bout a 105 going past 3300fps w/o too much pressure in my 6 creed?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jcvibby</div><div class="ubbcode-body">6mm has less recoil and better ballistics.
Although shooting the 6.5 creed with 130 JLK's at 3050, there is honestly not much that can touch that ballistically. Not even the 6mm really. It might but the 6mm pill would have to be just screaming!
Ballistic advantage? Hard to say for sure which one. I'm actually leaning at saying the 6.5
</div></div>
How bout a 105 going past 3300fps w/o too much pressure in my 6 creed?
Re: Why do some of you guys want a 6.5CM over a 6CM?
I have a 6mm (.243 win) for a bolt gun. The .243 is a great all around caliber and I can source a wide variety of bullets locally. Brass is also on the shelf locally. No so with 6.5CM.
For a gas gun I would go with the 6.5CM. Better barrel life than a fast 6mm and that matters on a gas gun where it's real easy to crank a magazine downrange.
I have a 6mm (.243 win) for a bolt gun. The .243 is a great all around caliber and I can source a wide variety of bullets locally. Brass is also on the shelf locally. No so with 6.5CM.
For a gas gun I would go with the 6.5CM. Better barrel life than a fast 6mm and that matters on a gas gun where it's real easy to crank a magazine downrange.
Re: Why do some of you guys want a 6.5CM over a 6CM?
this one is simple two answers mass produced quality inexpensive factory ammo and barrel life!
this one is simple two answers mass produced quality inexpensive factory ammo and barrel life!
Re: Why do some of you guys want a 6.5CM over a 6CM?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TeamSendIt</div><div class="ubbcode-body">this one is simple two answers mass produced quality inexpensive factory ammo and barrel life! </div></div>
But I dont shoot factory ammo, and if you dont wanna buy 6CM brass from GAP you can easily form 22-250 brass into 6 CM brass. Pre fireformed 250 brass on left, 6 Creedmoor on right.
fireformed 250 brass on left.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TeamSendIt</div><div class="ubbcode-body">this one is simple two answers mass produced quality inexpensive factory ammo and barrel life! </div></div>
But I dont shoot factory ammo, and if you dont wanna buy 6CM brass from GAP you can easily form 22-250 brass into 6 CM brass. Pre fireformed 250 brass on left, 6 Creedmoor on right.
fireformed 250 brass on left.
Re: Why do some of you guys want a 6.5CM over a 6CM?
Yeah 3300 is screaming fast!!! The ballistics are close even at 3300.
The JLKs BC is much better which helps.
The wind drift advantage goes to the 6.5mm
Yeah 3300 is screaming fast!!! The ballistics are close even at 3300.
The JLKs BC is much better which helps.
The wind drift advantage goes to the 6.5mm
Re: Why do some of you guys want a 6.5CM over a 6CM?
Still though, I currently have a 6.5x47 and I am building a 6 creed
Still though, I currently have a 6.5x47 and I am building a 6 creed
Re: Why do some of you guys want a 6.5CM over a 6CM?
I shoot a lot of factory ammo... or semi custom. No time to reload.
Barrel life is much better, I would rather shoot more and worry less about my round count.
I don't care what it says on paper, in the field is a different story. It's the Indian not the Arrow. The better shooter with more experience shooting their load will win. Knowing is better than hoping your mistake will still wind up on target.
Spotting shots at distance is easier, also at times the impact on heavy steel out farther is easier to see with a bigger bullet. The zippy 6s don't always move the plates.
I see no reason to change from 6.5mm. I have had 260s since 2004, so why switch, there is no advantage in me doing so. I have other calibers, from 7WSM to now, 300NM, so when I need less recoil, the 6.5s do all I personally need without having to learn new tables.
I like the fact I can shoot 22" or shorter 6.5mm barrels and my accuracy is first class, as well my speeds still give me an advantage over a 308. I don't care to use a 26" or longer barrel. If I want to shoot longer rifles, I will grab my 338s.
I shoot a lot of factory ammo... or semi custom. No time to reload.
Barrel life is much better, I would rather shoot more and worry less about my round count.
I don't care what it says on paper, in the field is a different story. It's the Indian not the Arrow. The better shooter with more experience shooting their load will win. Knowing is better than hoping your mistake will still wind up on target.
Spotting shots at distance is easier, also at times the impact on heavy steel out farther is easier to see with a bigger bullet. The zippy 6s don't always move the plates.
I see no reason to change from 6.5mm. I have had 260s since 2004, so why switch, there is no advantage in me doing so. I have other calibers, from 7WSM to now, 300NM, so when I need less recoil, the 6.5s do all I personally need without having to learn new tables.
I like the fact I can shoot 22" or shorter 6.5mm barrels and my accuracy is first class, as well my speeds still give me an advantage over a 308. I don't care to use a 26" or longer barrel. If I want to shoot longer rifles, I will grab my 338s.
Re: Why do some of you guys want a 6.5CM over a 6CM?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: nly205</div><div class="ubbcode-body">I can buy genuine quality match ammo "cheap", barrel life and Im not a serious enough competitor that saving a couple tenths of a mil in drop or wind is worth restricting myself to reloading only. </div></div>
This ^^^^^ and I don't want to reload another caliber.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: nly205</div><div class="ubbcode-body">I can buy genuine quality match ammo "cheap", barrel life and Im not a serious enough competitor that saving a couple tenths of a mil in drop or wind is worth restricting myself to reloading only. </div></div>
This ^^^^^ and I don't want to reload another caliber.
Re: Why do some of you guys want a 6.5CM over a 6CM?
Look at the ballistic coefficient of the 6.5 hard to top that.
Look at the ballistic coefficient of the 6.5 hard to top that.
Re: Why do some of you guys want a 6.5CM over a 6CM?
Tagged... next rifle will be one of these two calibers and I'm interested to say the least.
Tagged... next rifle will be one of these two calibers and I'm interested to say the least.
Re: Why do some of you guys want a 6.5CM over a 6CM?
I have both.
6CM can only be bought loaded from copper creek or McCourt.
6.5 I can go to a gun store and maybe find it. But I can order it a lot of places on the net. Easy to find brass too. Cheaper to shoot too, 22-23 a box vs 26 a box and the barrel life is better.
I have both.
6CM can only be bought loaded from copper creek or McCourt.
6.5 I can go to a gun store and maybe find it. But I can order it a lot of places on the net. Easy to find brass too. Cheaper to shoot too, 22-23 a box vs 26 a box and the barrel life is better.
Re: Why do some of you guys want a 6.5CM over a 6CM?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Loner</div><div class="ubbcode-body">Look at the ballistic coefficient of the 6.5 hard to top that. </div></div>
Yes, but check this out. Can you reach 3050 with a 6.5CM?
Resultsclose
Your Input Variables-6.5CM
Ballistic Coefficient 0.585 Velocity (ft/s) 3050 Weight (grains) 140
Maximum Range (yds) 600 Interval (yds) 100 Drag Function G1
Sight Height (inches) 1.5 Shooting Angle (degrees) 0 Zero Range (yds) 600
Wind Speed (mph) 0 Wind Angle (degrees) 90 Altitude (ft) 35
Pressure (hg) 29.53 Temperature (F) 59 Humidity (%) 0.78
Ballistics Results - 6.5
Range (yards) Velocity (fps) Energy (ft.-lb.) Trajectory (in) Come UP in MOA Come UP in Mils Wind Drift (in) Wind Drift in MOA Wind Drift in Mils
Muzzle 3050 2892 -1.5
100 2885 2588 11.1 -10.6 -3.1
200 2727 2312 19.5 -9.3 -2.7
300 2574 2060 23.2 -7.4 -2.1
400 2427 1830 21.6 -5.2 -1.5
500 2284 1621 14.2 -2.7 -0.8
600 2145 1431 0.1
And the 6CM.
Variables
Ballistic Coefficient 0.530 Velocity (ft/s) 3300 Weight (grains) 105
Maximum Range (yds) 600 Interval (yds) 100 Drag Function G1
Sight Height (inches) 1.5 Shooting Angle (degrees) 0 Zero Range (yds) 600
Wind Speed (mph) 0 Wind Angle (degrees) 90 Altitude (ft) 35
Pressure (hg) 29.53 Temperature (F) 59 Humidity (%) 0.78
Ballistics Results - 105
Range (yards) Velocity (fps) Energy (ft.-lb.) Trajectory (in) Come UP in MOA Come UP in Mils Wind Drift (in) Wind Drift in MOA Wind Drift in Mils
Muzzle 3300 2539 -1.5 0 0
100 3108 2252 9.5 -9.1 -2.6
200 2924 1994 16.9 -8.1 -2.4
300 2748 1761 20.3 -6.4 -1.9
400 2579 1551 19 -4.5 -1.3
500 2416 1361 12.5 -2.4 -0.7
600 2259 1190
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Loner</div><div class="ubbcode-body">Look at the ballistic coefficient of the 6.5 hard to top that. </div></div>
Yes, but check this out. Can you reach 3050 with a 6.5CM?
Resultsclose
Your Input Variables-6.5CM
Ballistic Coefficient 0.585 Velocity (ft/s) 3050 Weight (grains) 140
Maximum Range (yds) 600 Interval (yds) 100 Drag Function G1
Sight Height (inches) 1.5 Shooting Angle (degrees) 0 Zero Range (yds) 600
Wind Speed (mph) 0 Wind Angle (degrees) 90 Altitude (ft) 35
Pressure (hg) 29.53 Temperature (F) 59 Humidity (%) 0.78
Ballistics Results - 6.5
Range (yards) Velocity (fps) Energy (ft.-lb.) Trajectory (in) Come UP in MOA Come UP in Mils Wind Drift (in) Wind Drift in MOA Wind Drift in Mils
Muzzle 3050 2892 -1.5
100 2885 2588 11.1 -10.6 -3.1
200 2727 2312 19.5 -9.3 -2.7
300 2574 2060 23.2 -7.4 -2.1
400 2427 1830 21.6 -5.2 -1.5
500 2284 1621 14.2 -2.7 -0.8
600 2145 1431 0.1
And the 6CM.
Variables
Ballistic Coefficient 0.530 Velocity (ft/s) 3300 Weight (grains) 105
Maximum Range (yds) 600 Interval (yds) 100 Drag Function G1
Sight Height (inches) 1.5 Shooting Angle (degrees) 0 Zero Range (yds) 600
Wind Speed (mph) 0 Wind Angle (degrees) 90 Altitude (ft) 35
Pressure (hg) 29.53 Temperature (F) 59 Humidity (%) 0.78
Ballistics Results - 105
Range (yards) Velocity (fps) Energy (ft.-lb.) Trajectory (in) Come UP in MOA Come UP in Mils Wind Drift (in) Wind Drift in MOA Wind Drift in Mils
Muzzle 3300 2539 -1.5 0 0
100 3108 2252 9.5 -9.1 -2.6
200 2924 1994 16.9 -8.1 -2.4
300 2748 1761 20.3 -6.4 -1.9
400 2579 1551 19 -4.5 -1.3
500 2416 1361 12.5 -2.4 -0.7
600 2259 1190
Re: Why do some of you guys want a 6.5CM over a 6CM?
What powder and load are you running to get to 3300? That is fast. Barrel length?
What powder and load are you running to get to 3300? That is fast. Barrel length?
Re: Why do some of you guys want a 6.5CM over a 6CM?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: toddconley</div><div class="ubbcode-body">What powder and load are you running to get to 3300? That is fast. Barrel length? </div></div>
RL 17 would be my guess. I haven't tried it yet. Some say it can act up during hot weather, but that's just me repeating what I've read elsewhere. I have no firsthand proof.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: toddconley</div><div class="ubbcode-body">What powder and load are you running to get to 3300? That is fast. Barrel length? </div></div>
RL 17 would be my guess. I haven't tried it yet. Some say it can act up during hot weather, but that's just me repeating what I've read elsewhere. I have no firsthand proof.
Re: Why do some of you guys want a 6.5CM over a 6CM?
6 cm is the bestest, are u happy. I will still gladly shoot my 6.5 cm and enjoy their ballistic inferiority. Lol
6 cm is the bestest, are u happy. I will still gladly shoot my 6.5 cm and enjoy their ballistic inferiority. Lol
Re: Why do some of you guys want a 6.5CM over a 6CM?
6cm comps, 260 and 308 the rest of the time. 6cm kicks ass but is expensive to shoot.
6cm comps, 260 and 308 the rest of the time. 6cm kicks ass but is expensive to shoot.
Re: Why do some of you guys want a 6.5CM over a 6CM?
3300 is smoking. I can get to 3100 in my gap 10 before it starts showing pressure signs, but it is a gas gun and 22" barrel.
3300 is smoking. I can get to 3100 in my gap 10 before it starts showing pressure signs, but it is a gas gun and 22" barrel.
Re: Why do some of you guys want a 6.5CM over a 6CM?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: my human host</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: toddconley</div><div class="ubbcode-body">What powder and load are you running to get to 3300? That is fast. Barrel length? </div></div>
RL 17 would be my guess. I haven't tried it yet. Some say it can act up during hot weather, but that's just me repeating what I've read elsewhere. I have no firsthand proof. </div></div>
Indeed, RE17 it is, even the 6XC can get past 3300 with RE17 and it holds less powder, Im shooting a 28" HV Bart.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: my human host</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: toddconley</div><div class="ubbcode-body">What powder and load are you running to get to 3300? That is fast. Barrel length? </div></div>
RL 17 would be my guess. I haven't tried it yet. Some say it can act up during hot weather, but that's just me repeating what I've read elsewhere. I have no firsthand proof. </div></div>
Indeed, RE17 it is, even the 6XC can get past 3300 with RE17 and it holds less powder, Im shooting a 28" HV Bart.
Re: Why do some of you guys want a 6.5CM over a 6CM?
picked the 6.5 creed as i will be hunting with it
picked the 6.5 creed as i will be hunting with it
