JimTom wrote:G'day mate
I am loading the 143 ELDX in my Creedmoor and have them loaded so they are a poofteenth of the lands. I haven't found any restrictions associated with the short action of the 6.5 Manbun and the 143 ELDX are a long projectile.
I am by no means saying it's any better than the 6.5x55. I was tossing up between the two, I did however opt for the Manbun for a number of reasons.
In saying that I would happily own a Swede.
JimTom wrote:I read an article just recently about a 7x57. Seemed like a good cartridge.
Don’t know a lot about it though. Do you have one mate?
bladeracer wrote:JimTom wrote:G'day mate
Rough comparisons, but some tweaking can exceed these numbers by decent margins of course (particularly with some of the military loads):
6.5mm Creedmoor (case length 48.8mm) 140gn at 2650fps.
6.5x50mm 140gn at 2500fps.
6.5x52mm 140gn at 2200fps.
6.5x54R 140gn at 2200fps.
6.5x55mm 140gn at 2600fps.
6.5x58mm 140gn at 2500fps.
.260Rem (case length 51.5mm) 140gn at 2700fps.
6.5mm Grendell (case length 38.5mm) 140gn at 2350fps.
.
SCJ429 wrote:bladeracer wrote:JimTom wrote:G'day mate
Rough comparisons, but some tweaking can exceed these numbers by decent margins of course (particularly with some of the military loads):
6.5mm Creedmoor (case length 48.8mm) 140gn at 2650fps.
6.5x50mm 140gn at 2500fps.
6.5x52mm 140gn at 2200fps.
6.5x54R 140gn at 2200fps.
6.5x55mm 140gn at 2600fps.
6.5x58mm 140gn at 2500fps.
.260Rem (case length 51.5mm) 140gn at 2700fps.
6.5mm Grendell (case length 38.5mm) 140gn at 2350fps.
.
The poor old 6.5x55 Swede always gets sold short, I know you qualified this in your opening line. I feel it has to be said that the Swede can easily shoot a 140 grain projectile out of a modern action at 3,000 fps, giving it a considerable advantage over the 260 and CM.
Flyer wrote:I just looked up my load data and we chronoed the 143 ELD-X with 42.5gr of 2209 at 2710fps.
At the ADI/Hornady max recommended 41.5gr - which is Jim Tom's load - it was going 2650fps.
I haven't finished load development yet, so I still have 42.8 and 43.0 to go - maybe a little higher if I find a node - so there's potential for over 2750fps and the Lappy brass seems to handle it easily. That's in a new 24" barrel, so it might also get a little quicker as the barrel seasons.
OAL for the 143 ELD-X in my Sako is 2.932" and maximum mag length is 2.900", so I've been loading 2.890" or 0.042" off the lands.
The 143 ELD-X is 1.430" long - about as long as you're going to load in a Creedmoor, and longer than a Berger 140gr VLD (1.420"). That's plenty long enough for mag loading just about any bullet on the market. Anyone who's serious about bench rest or F-Class is going to single load anyway.
JimTom wrote:SCJ429 wrote:How fast can a CM sling a 143 ELDX?
Mate I don’t chrono anything however from the loading tables I expect that I am getting just under 2700fps out of them, so about the same or a tiny bit quicker thank the Swede with a couple of grains less powder.
bigrich wrote:Just forget about all the 6.5’s and get a 7x57 . If I had my time again I would get a quality rifle in this caliber . In a modern rifle it can exceed in accuracy and as a hunting round over a lot of the modern rounds. JMHO
bladeracer wrote:
Bill wrote:JimTom wrote:SCJ429 wrote:How fast can a CM sling a 143 ELDX?
Mate I don’t chrono anything however from the loading tables I expect that I am getting just under 2700fps out of them, so about the same or a tiny bit quicker thank the Swede with a couple of grains less powder.
quicker than a swede lol Ive owned 3 and all did well over 2700fps with a 140gr.
my last 260rem with a 21inch tube safely pushed 140gr Lapua's to 2840fps, now thats bit more than the Creedmore gets.
there is no such thing as a free lunch with the creedmore...ya gunna either need a long tube (heavier) or really push the PSI to keep up with the 260 and 6.5 swede.
Bill wrote:JimTom wrote:SCJ429 wrote:How fast can a CM sling a 143 ELDX?
Mate I don’t chrono anything however from the loading tables I expect that I am getting just under 2700fps out of them, so about the same or a tiny bit quicker thank the Swede with a couple of grains less powder.
quicker than a swede lol Ive owned 3 and all did well over 2700fps with a 140gr.
my last 260rem with a 21inch tube safely pushed 140gr Lapua's to 2840fps, now thats bit more than the Creedmore gets.
there is no such thing as a free lunch with the creedmore...ya gunna either need a long tube (heavier) or really push the PSI to keep up with the 260 and 6.5 swede.
JimTom wrote:Yes mate maybe your Swede and .260 do do over 2700fps, lol, like I said, I am just going off the loading tables. No doubt a Creedmoor could do the same. I don’t load outside the recommended loads of the manufacturers data, so I wouldn’t really know, lol, lol.
Wasn’t having a shot at the Swede mate, couldn’t care less, not into worrying about which rifle had the biggest cock.lol, lol, lol.
Flyer wrote:I think it's worth mentioning the small primer Lapua cases are thick with lots of metal around the primer pockets and some long-range competition shooters are pushing the Creedmoor up to and over 64,000psi. I don't want a barrel burner, but I wouldn't mind a hunting load with a bit of "oomph". I bought the 6.5CM to replace a 243 because I figured the 6.5 could do everything the 243 could do with similar recoil, longer barrel life and also encroach into 308 territory in terms of downrange energy. I wanted a mid-ranged centrefire that could "do everything". I don't think there's anything a 6.5 couldn't account for in the Aussie bush.
bladeracer wrote:JimTom wrote:Yes mate maybe your Swede and .260 do do over 2700fps, lol, like I said, I am just going off the loading tables. No doubt a Creedmoor could do the same. I don’t load outside the recommended loads of the manufacturers data, so I wouldn’t really know, lol, lol.
Wasn’t having a shot at the Swede mate, couldn’t care less, not into worrying about which rifle had the biggest cock.lol, lol, lol.
I pretty much ignore manufacturer's data as they're all different. Your loads within the specific data you are using may well be outside the data from another manufacturer or manual. I load to what my brass and rifle tell me are acceptable.
Cal-ApeR wrote:Your thoughts are very similar to mine. I still have a little life in my 243 but thought maybe the creedmoor for this price would tick the boxes and deal with my varmints as well as medium sized game. Brass is not as cheap, projectiles in .264 are slightly more per hundred but barely enough to worry about.
Have you achieved this goal? Any chance you've used the Speer 90gr TNT in your Creed?
SCJ429 wrote:The Swede should have two sets of load data like the 45/70 has, one for older actions and one set for modern designs. It is not uncommon to be more than six grains over when loading for a Swede.
bigrich wrote:SCJ429 wrote:The Swede should have two sets of load data like the 45/70 has, one for older actions and one set for modern designs. It is not uncommon to be more than six grains over when loading for a Swede.
i agree on two sets of load data for the swede . i find nick harvey's load data book to be more realistic, but i stress all loads should be cautiously worked up . a lot of the older cartriges like the 6.5 swede and the 7x57 , even the 30-30 in a ruger No 1 with spitzer bullets , can be loaded up to perform well beyond their original spec safely in a solid modern rifle . i love playing with ballistics. the funnest, cheapest caliber that i got the best groups out of , 22 hornet
Cal-ApeR wrote:Cooper, how did the Speer perform? Curious to know what sort of groups you were capable of using the lighter projectiles.
I keep flipping back and forth between the idea of getting a spare 243 or a creedmoor. Your input here will help.
Cal-ApeR wrote:Flyer wrote:I think it's worth mentioning the small primer Lapua cases are thick with lots of metal around the primer pockets and some long-range competition shooters are pushing the Creedmoor up to and over 64,000psi. I don't want a barrel burner, but I wouldn't mind a hunting load with a bit of "oomph". I bought the 6.5CM to replace a 243 because I figured the 6.5 could do everything the 243 could do with similar recoil, longer barrel life and also encroach into 308 territory in terms of downrange energy. I wanted a mid-ranged centrefire that could "do everything". I don't think there's anything a 6.5 couldn't account for in the Aussie bush.
Your thoughts are very similar to mine. I still have a little life in my 243 but thought maybe the creedmoor for this price would tick the boxes and deal with my varmints as well as medium sized game. Brass is not as cheap, projectiles in .264 are slightly more per hundred but barely enough to worry about.
Have you achieved this goal? Any chance you've used the Speer 90gr TNT in your Creed?