Creedmoor vs .308 (bolt action)

[M118LR]

Numbers run,Hornady factory loads on their calculators.

.308 178 grain eldx
View attachment 136187
5.56 77grain match View attachment 136188
6mm (creed) 105 grain match bullet( not a dasher). Which I believe has similar mv to a 6mm dasher. In my quick search I couldn’t find any specific data for the Dasher
View attachment 136189
Wind drift 10mph@90deg/full value.
.308- 2.23 mil
5.56-3.11mil
6mm-1.9mil

( caveat- Difference in bullets and mv will have different results)

Just a little personal experience-
I spotted for 2 guys setting up an elk rilfe spitting 30 cal 200+ grain projectiles at 3150fps about a month ago, I can’t remember the specific cartridge but it was some nosler specialty thing. They zeroed out at 450 yards, and that was the range we were shooting. I spotted for them and they let me shoot the last two shots and put both shots in center mass with in about 3 inches having never shot the rifle before. Bipod, no rear bag off a bench. With a rangefinder, known ballistics and that rifle, I would feel confident getting 1st shot effective hits at long range. Those things things hit hard.

If the projectile was a Nosler Partition it's supposed to reach target distance at a velocity above 1800 fps. When shooting on the Ice Pack I was just barely able to keep .300 Win Mag above 1800 fps @ 300 yards. 18 inch barrel Ruger Guide Gun.

 

[seandizzie]

If the projectile was a Nosler Partition it's supposed to reach target distance at a velocity above 1800 fps. When shooting on the Ice Pack I was just barely able to keep .300 Win Mag above 1800 fps @ 300 yards. 18 inch barrel Ruger Guide Gun.

Yes I believe it was a partition, put not sure, think the tip was silver or white in color. All carbon fiber gun, damn thing was super light, it surprised me when I when I saddled in behind it. 24 or 26” barrel, muzzle break.

I am used to my 16” .308. It was a pleasure to get a squeeze on that bad boy.

 

[M118LR]

Yes I believe it was a partition, put not sure, think the tip was silver or white in color. All carbon fiber gun, damn thing was super light, it surprised me when I when I saddled in behind it. 24 or 26” barrel, muzzle break.

I am used to my 16” .308. It was a pleasure to get a squeeze on that bad boy.

An extra 8 or more inches of barrel helps MV, but the 200 Grain .308 Partition has a much better BC than the 220 Grain Semi Spitzer I was using for a Big Bruin. Didn't see many 6.5 Creedmoor's, but the First Nation Folks had allot of 30-06 & .338 Win Mags.

 

[seandizzie]

An extra 8 or more inches of barrel helps MV, but the 200 Grain .308 Partition has a much better BC than the 220 Grain Semi Spitzer I was using for a Big Bruin. Didn't see many 6.5 Creedmoor's, but the First Nation Folks had allot of 30-06 & .338 Win Mags.

I am pretty sure this is what it was, which stays above 1800fps past 800yards. It hit that plate hard!

 

[M118LR]

I am pretty sure this is what it was, which stays above 1800fps past 800yards. It hit that plate hard!
View attachment 136214

30-378 Wby Mag 210gr AccuBond Long Range Trophy Grade Ammunition

30-378 Wby Mag 210gr AccuBond® Long Range Trophy Grade Ammunition

www.nosler.com

3040 fps MV, 210 grain projectile; equals allot more shove on the shoulder than either the 6.5 or Win .308. But fast is always fun!

 

[SAWMAN]

What a wimp load. My 28" would shoot a 220gr SMK at over 3200. --- SAWMAN