I don't think it's the cartridge. It's the bullet. I've heard this even with the 6.5-284 pushing them over 3000. I don't think it's all the 147s but some lots have had issues
Hornady 6.5 147 gr bullets
- Thread starter Stan Taylor
- Start date
Spook
Captured too late to be fully domesticated.
I lost a bunch launching them with 6.5X55BJAI in FClass.
Slowed them down to just under 2800 and everything was fine.
Similar experience with 108 ELD m.
I'm not sure why it makes me cranky that I can shoot them real fast?
They go pretty much where they are supposed to at the reduced speed.
Slowed them down to just under 2800 and everything was fine.
Similar experience with 108 ELD m.
I'm not sure why it makes me cranky that I can shoot them real fast?
They go pretty much where they are supposed to at the reduced speed.
Xxpoof xxxpoof I won’t use them in my Creedmoor
AckleymanII
Gold $$ Contributor
target shooting for fun, I have not had any problems at all in 6 and 4 groove barrels, 6.5x47 Lapua, H4350. My barrels do not get hot.
Brother shot deer through the ribs with them this year, couple of hogs, 6.5 Creed, 6.5/06.
Comp shooting where the barrels get very hot, rough throats, could be a contribution.
Brother shot deer through the ribs with them this year, couple of hogs, 6.5 Creed, 6.5/06.
Comp shooting where the barrels get very hot, rough throats, could be a contribution.
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Are you sure about this? Just asking.
Exactly. I don't think the Hornady bullets take the heat like Berger's and SMKs
SBS
Gold $$ Contributor
I was going to run the 147's in a 6.5-06 AI. Had a good load at little under 3100. Worked well while working up loads; barrel didn't get hot and barrel got cleaned often. Decided to try it out @600 match to begin with in warm weather. Didn't get through the 1st 20 shot match without a blowup. Brux 4 groove 8T 30" bbl. with about 100 rds fired during load workup. Backed off somewhat and at another match almost made it through the 2nd 20 shot match. Later used up remainder of bullets through a 6.5-284 that had a lot of rounds through it by only shooting one 20 rd. match starting with a clean cold barrel ( 4 groove 8T Krieger) at both 600 and 1000 running about 2900. Then loaded 140 Hybrids in the same 6.5-06 AI as above @ over 3100 with no blowups in 3 consecutive relays @1000. Shot a couple of 60 round 1000 yd. matches since with 144 Hybrids @ 3125 in warm weather with no failures and good accuracy. There's enough evidence of 147 bullet failure in match shooting to convince most competitors that are shooting calibers faster than 6.5 CM rounds, but Hornady still claims not to have a bullet problem. I've read that Berger had similar problems in the past, but they sure figured out a fix.
AckleymanII
Gold $$ Contributor
5% Tin core, works wonders
The ELD-M's Copper Jackets, are ONLY,.. .023 Thick ! ( ELD-X's have, .037 Thick, Copper, "shanks" ).
Your Rifling ( lands ) cut into it, about .006 to .007 ( Per Side ) so NOT, a lot of Jacket material, left !
Better have, a Smooth Barrel, keep it clean and at, the SLOWER, Creedmoor, Velocities !
Under, 2,850 / 2,900 FPS Max., Velocity would be, my guess with, a 1-8 Twist to be, SAFE !
I shoot 140 Bergers at 3,185 FPS in my .270 WSM and, the ONLY place that, they "Blow up" is,.. IN,.. the Elk !
Your Rifling ( lands ) cut into it, about .006 to .007 ( Per Side ) so NOT, a lot of Jacket material, left !
Better have, a Smooth Barrel, keep it clean and at, the SLOWER, Creedmoor, Velocities !
Under, 2,850 / 2,900 FPS Max., Velocity would be, my guess with, a 1-8 Twist to be, SAFE !
I shoot 140 Bergers at 3,185 FPS in my .270 WSM and, the ONLY place that, they "Blow up" is,.. IN,.. the Elk !
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Hornady probably needs to make the Jackets about, .005 to .007,.. THICKER,.. IMO
The .037 thick, ELD-X's,.. aren't, "Blowing up" at, 6.5 PRC or,. .264 Magnum Velocities !
The .037 thick, ELD-X's,.. aren't, "Blowing up" at, 6.5 PRC or,. .264 Magnum Velocities !
I'm no expert but have done lots of research so I would say Yes, excluding the bullet dropping to transonic velocities which can destabilize a bullet. But the charts he had to 1000 yards didn't have any velocities that slow. Apparently once a bullet drops below about 1340 fps is when that comes into play. I found this thread while I was searching if anyone had luck with the 147 eldm and a 9" twist. It seems like it would work at my 5000' altitude and be less likely to come apart at the slower spin rate? Anyone tried it?Are you sure about this? Just asking.
FeMan
Gold $$ Contributor
garyatip is correct. The rpm of a bullet is established by the MV and twist. Once it leaves the barrel the rpm stays essentially the same. I think what the other gentleman was posting was based on the stability at given ranges with the SG calculated based on the stability using the downrange velocity rather than the MV.Are you sure about this? Just asking.
Thanks. Didnt know. Learned something today.
Read somewhere today that 5r rifling was intended as a solution to bullets failing due to hot, fast twist barrels. It makes sense, if the rifling deforms the bullets less. If someone were planning a build and intended to shoot these 147eldm's or any other 6.5 bullet that has deconstructed on the way down range perhaps 5r rifling could be considered or a slower twist like 8.5" or 9". I was told that 9" twist used to be common in competition. I'm unaware of any factory barrels in anything other than 8" in the creedmoor or PRC but that doesn't mean that's what best for everyone. I will try it down the road when I have time as I have a 9" twist creedmoor barrel. The stability calcs I've done show a 9" twist should stabilize the 147eldm at 2650fps 0 degrees F. and 4000' altitude.
Of course that doesn't help anyone with the barrel that they already have. I ended up selling some Nosler 60gr ballistic tips and Speer 52hp's because they turned into puffs of dust downrange in my 7" twist .223
Of course that doesn't help anyone with the barrel that they already have. I ended up selling some Nosler 60gr ballistic tips and Speer 52hp's because they turned into puffs of dust downrange in my 7" twist .223
MikeMcCasland
Team Texas F-T/R
When they routinely blow up at Creedmoor/.260 velocities, out of both custom barrels, and factory guns, you have a bullet problem. Full stop.
The problem with the ELDMs isn't over rotating them, pushing them too fast, or rough barrels. It is undeniably a bullet construction & integrity issue.
I've got a couple thou of these down range on 2 separate rifles. 1 blow up. Forgot to chamfer the case mouth when seating, took a nice gouge out of the jacket. Used it as a sighter, blew up about 75 yards down range. No other issues. Slow fire 2850 fps and below.
Hello everyone,
New to reloading and come across these 147s you mention and bought a box with the intent on trying them in my old 1896 Swede.
Is this a bad idea?
New to reloading and come across these 147s you mention and bought a box with the intent on trying them in my old 1896 Swede.
Is this a bad idea?
STOMP442
Gold $$ Contributor
Had multiple blow ups in a couple different Bartlien 5R barrels. 147s just don't hold together.
FeMan
Gold $$ Contributor
As long as you have enough twist to stabilize them its worth a shot. A 1:8 or faster is what I would say you should need.
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