6.5 CM or 6.5x47 Lapua

ffgats

ffgats

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I have 308 in a Defiance Tenacity snd Krieger bbl, very happy with Kevin Chou’s work, now I want to try a 6.5 either the Creedmoor or The Lapua, I do my own reload so not depending on commercial ammo, maybe max distance is 500 if I can find one, Actually another question is should a different action a better idea, more money but doesn’t have to take out and back the barrel,no zeroing of scope although a new action will cost more, new trigger, scope, mounts. Entertaining of joining PRS but 80 will just be bench shooting. Thought’s on this, how about barrel life, and reloading components availability and ease, thanks
 
Accuracy wise.......I don't think you'll see any appreciable difference for most of what your're likely to use the rifle for.
 
I would go 6.5x47 personally because I have one and love it. But yeah its hard to argue one over the other. If I was setup with all 6.5 CM components I would go 6.5CM.
 
Because you included PRS... Creedmoor. Brass has far more options and, usually, much larger supply. Costs can be alot lower per piece too... why, because when you compete, you will loose stuff.

If that doesn't matter to you, flip a coin and enjoy...

Jerry
 
There's so similar it really makes no difference. I'd go 6.5 Creed (and I have a couple of em) just because it is nice to be able to pick up factory ammo if/when you want. With the Creed you can also choose between small rifle primer brass or large rifle primer brass if that matters to you.
 
6.5x47 L, its an easy cartridge to load for not picky at all. Not quite as fast as CM but I prefer it. I currently have a creed and wish I would have done x47 again its a much better cartridge IMO
 
Had/have both. CM is easier to source brass/dies/stuff; I eventually migrated to CM by having two barrels re-reamed from x47 to CM when set back.
Accuracy wise, flip a coin! Both are stupid accurate.
 
Sorry for highjacking the thread, but this is my very first time shopping for parts only, actually I need everything but no stock.

For my education only - Would the "Krieger Heavy Palma" 6.5 CM a good fit for 300 meters Target rings?
 
Heavy Palma profile is a Heavy bbl, looking about 6-7 lbs depending on the length, it all depends on your shooting discipline, for bench, hunting or any positional competition type. I sure others will chime in.
 
ffgats said:
Heavy Palma profile is a Heavy bbl, looking about 6-7 lbs depending on the length, it all depends on your shooting discipline, for bench, hunting or any positional competition type. I sure others will chime in.
Click to expand...

At my club I have 100-200-300-400 meters distances and shooting from bench. For my 100M two airguns I built a one-piece-rest this last winter and works great. I may build one more but stronger - if needed for a firearm rifle.
I don't hunt, I would be shooting these longer ranges target only, and if all goes well I may start competing as well.
The heavier barrel is better, right?
 
bigHUN said:
At my club I have 100-200-300-400 meters distances and shooting from bench. For my 100M two airguns I built a one-piece-rest this last winter and works great. I may build one more but stronger - if needed for a firearm rifle.
I don't hunt, I would be shooting these longer ranges target only, and if all goes well I may start competing as well.
The heavier barrel is better, right?
Click to expand...

Strictly for Bench shooting, MTU/Heavy Varmint would be a good choice aside from Heavy Palma
 
I'm going to suggest that you asses this question from a fundamental perspective.

If you start by examining the most popular and long standing cartridges used in long range competition you will find a close link between the powder charge and the bullet weight.

Bullets used for long range are inevitably among the heaviest for the caliber. For 223 it will be 80-90 grains, for 6mm it will be from 105 to 115 grains, for 6.5 it will be from 130 to 145 grains.

If we take the bullet weight and divide by 3, you will get a ball park powder charge that is used in most competitive long range cartridges. In this case we are considering the 6.5 mm so 130 / 3 = 43.33 grains and 145 / 3 = 48.333 grains.

So if we are to replicate the most popular and proven long range cartridges, we would want a case that holds between 43.3 and 48.3 grains of powder. That eliminates the 6.5x47 L.

So mathematically, the power to bullet weight ratio leaves us with the 6.5 Creed as the most proven choice.

Besides, the small rifle primer used in the 6.5x47L can cause ridiculous ignition inconsistencies over wide temperature changes that you will not experience with the LRP 6.5 Creed.

In this case the 6.5x47L is a little under powered and in contrast to the 6 Creed which tips the balance in the over powdered direction and is on the hot side of the one third line.
 
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