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.284 & 180ELD's

I think we are all closer than we realize to losing 7mm bullets. I had to recently take more sighters in my saum than normal, a Brux 4 groove. Combination of fog interfering with my comfort level, deciding I’d try a different load in sighters, and waiting on sight clearance to put any test rounds on the E-targets. While we’ve had no-reads, and we reshoot them, I have my suspicions about a hot barrel. These were not Hornady bullets; it occurred on two brands, because I switched back after an occurrence, and yes, they were both moving along.

Point being, more sighters or faster shooting than we are accustomed to might produce an effect we are often flirting with, unknowingly. Was it Bob Mead who originally called it “finicky” in an interview with Erik?

It’s not just “finicky,” the Saum is a Napoleon-complexed little fire-plug of a chip-on-its-shoulder, fresh-landed immigrant-turned-gangster, that routinely punches harder than the bones of its hands can withstand, and spends 3 nights a month in the drunk tank, 3 in the hospital, and when at work, breaks as many tools as everyone else, combined.
 
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Yes I ran a few at 200 yards with A-4350 and 20 off .
SD of 5.42 Vol. only 2668 AV. Little slow for 1000 yards.

I have more loaded with more A-4350 looking for 2770 give or take.
No range time till end of March ? Singing Willy's Song.
Hi Don..
Have you done any testing with the ELDM's yet..?
Yes posted
 
Tested those 180 ELD's at 2768 ???
Low SD 5.27
Shot at 200 yards from rest.
Group was Vertical 4"???

May Play with Neck tension and OAL ?

Good Friend F/Class Shooter said " will shot to 800 good, 900 &1000 wild."
 
I'd be interested too see if the friction from your 30/32 barrels causes the blow up..
Alot of your f open shooters have tried them and had them blow up..
Plenty of info on accurate shooter about them blowing up
Good Morning

I shoot them in my 284 Shehane as a long range hunting bullet. I use local ( South African ) S 385 powder at 2780fps. 28 inch barrel. Seated 15 thou of the lands. Russian Murom KVB 7 primers ( getting harder to find these days). I believe its the same as Wolf primers in the US but I ma not 100% on that. Its a relatively mild load.

Pretty accurate out to 900m

I have shot them in my F Class rifles as well. They seem to disappear at speeds over 2850fps from time to time..........
 
Hornady have a great bullet in the 7mm 180gr ELDM but they must thicken up the jacket or toughen up the copper mix too stop them blowing up.
I am at loss to understand why Hornady does not address this problem. Of course they know about it. As others have pointed out, many have had this happen when the spin rate increases. It has happened to me with the 147s in a 6.5 PRC when I increased the velocity a little over 3000 in a 1-7.5 5R. It has never happened with Berger or Sierra bullets.
My lesson from all these accounts is that Hornady designs some bullets with great characteristics on paper but at higer velocities and rpms, go with the Bergers and SMKs.
 
I've currently stopped using them after my 26 inch 284 blew 3 up..
The barrel has had a hard life..
In my case it may have been the worn barrel that caused..
About 900 x 180gr eldms through the barrel before it blew them..
I used 180gr hybrids over 51.8grs of RS60/Rel17 on my next visit and they all made the target nicely..
I'll try the ELDM's again when I get a new barrel
 
I've currently stopped using them after my 26 inch 284 blew 3 up..
The barrel has had a hard life..
In my case it may have been the worn barrel that caused..
About 900 x 180gr eldms through the barrel before it blew them..
I used 180gr hybrids over 51.8grs of RS60/Rel17 on my next visit and they all made the target nicely..
I'll try the ELDM's again when I get a new barrel
That’s what I thought at first in my 7SAUM
It was towards end of its life but it was a new lot of 180’s than older lot.
Tried the new lot in my new 5r(which is supposed to be more gentle on jackets than my previous 4 grove) and the still blew up
 
If my memory serves me well the ELDM's in my saum f open rifle were doing 2950fps.
It did several matches before 2 blew..
Tried them again and lost another..
More importantly it cost me 5 points going from first or second place too nearly last..
That was the last time I took them too an f open match..
It's a shame coz I shot several 0.5 minute elevation matches at 1000yds.
 

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