New 155gr 6.5mm Berger on the horizon?

[Grimstod]

Hogslayer on hunting-washinton is now claiming that the G1BC is 0.717 for this new 155gr bullet.

 

[IdahoSharpshooter]

time to dust off my 6.5-284 I guess...

 

[dkhunt14]

Wind drift isn't always what the computer programs tell you. Ask any BR shooters, short range or far. There are them loads that tend to shoot way better through conditions, most guys call them hummer barrels but I believe it has more to do with the load and the bullet settling down. I have had a few 1000 yard BR barrels that shot way better through the wind then others. They just wanted to score. Then you could have another identical barrel, same brass, bullets, and powder runnimgmtje same velocity and it wouldn't hold a candle to the good one. Matt

 

[Grimstod]

Just read that this bullet is .080 longer then the 140gr HVLD.

 

[Eric Leonard]

IME the Nosler 142 LRAB shoots the same dope as the 140 Hybird at the same speeds,,maybe not as accurate but same clix at 1,000.

I would also guess a 155 6,5mm would be about like the 195 7mm and take a big case to see a gain over the 140,,but if you ran them out of the 6,5 Nosler or Weatherby that they would have a place,,kinda like the 28 Nosler and the 195s

 

[Mozella]

Cant anyone spell Creedmoor right lol. Its not CreedMoor.

Can't anyone punctuate the word "Can't" right anymore?

 

[JBT47]

What will be the recommended twist rate?

 

[IdahoSharpshooter]

the way Berger is reclassifying twist rates, probably 6.5".

 

[284winner]

Can't anyone spell 'claiming' right?

I realize that all of this is just hypothetical but the suggested BC appears to be a little low, especially if the Nosler Accubond LR is higher by Nosler's claim.

View attachment 1018278

It's always nice to see a bullet maker follow through with the current trend of long/heavy for caliber...

Regards.

Ya that's believable

 

[284winner]

IME the Nosler 142 LRAB shoots the same dope as the 140 Hybird at the same speeds,,maybe not as accurate but same clix at 1,000.

I would also guess a 155 6,5mm would be about like the 195 7mm and take a big case to see a gain over the 140,,but if you ran them out of the 6,5 Nosler or Weatherby that they would have a place,,kinda like the 28 Nosler and the 195s

26 Nosler and now your talking changing the game. Like Fredo said, I really don't see the money in weight over velocity unless the BC is astronomically greater. Then the velocity better work too. I'm still with the 26 nosler or the old 6.5 win mag.

 

[Eric Leonard]

I am still hoping for a 130 gr .257

 

[TZaun]

IME the Nosler 142 LRAB shoots the same dope as the 140 Hybird at the same speeds,,maybe not as accurate but same clix at 1,000.

I would also guess a 155 6,5mm would be about like the 195 7mm and take a big case to see a gain over the 140,,but if you ran them out of the 6,5 Nosler or Weatherby that they would have a place,,kinda like the 28 Nosler and the 195s

Not as big of a case as you're referencing, but I'm currently working with the 155 gr. Cauterucio in a 6.5WSSM Ackley. I just fireformed the brass at a long range F-Class match. The fireform load was only 2760 fps, but they shot extremely well there. I had run it up to 2865 with no pressure signs. I'm hoping to find a node up in the 2900s with the formed brass. May be a dream. Not too many people interested once you mention "WSSM", because of the brass, but I can report back with velocities and performance some day. I tried the 155s in a 6.5-284 with an 8-twist a couple of years ago. I could never get them to shoot great. I always felt the twist was a little slow. I went with a 7.25-twist on this build and they're shooting way better already.

 

[Hengehold]

Found this on a FB page. Any one hear about it yet? Estimated BC? Guy is claiming stable in a 1:8 which I do not buy. One person estimated it would have a BC G1= 0.675 is g7= 0.345 EST.

Will this be a big game changer? Will many that have been switching to the 284 switch back to the 6.5-284? View attachment 1018273View attachment 1018274

Berger is behind the times on that one. Cauterecio has had a 6.5mm, 155gr VLD for years. If I was not opposed to shooting VLDs due to seating depth sensitivity, I would be using them. I had him make a non-VLD 153gr, 6.5mm bullet but the BC was about what the Berger 140 hybrid is so I waived off on that project.

I have a 6.5-284 throated for 140gr bullets. I pressure tested some Cauterucio 153gr (10 cal ogive) bullets in it and was easily able to reach 2950fps. Bullet was seated DEEP into the case past neck/shoulder junction.

-Trevor

 

[TZaun]

Berger is behind the times on that one. Cauterecio has had a 6.5mm, 155gr VLD for years. If I was not opposed to shooting VLDs due to seating depth sensitivity, I would be using them. I had him make a non-VLD 153gr, 6.5mm bullet but the BC was about what the Berger 140 hybrid is so I waived off on that project.

I have a 6.5-284 throated for 140gr bullets. I pressure tested some Cauterucio 153gr (10 cal ogive) bullets in it and was easily able to reach 2950fps. Bullet was seated DEEP into the case past neck/shoulder junction.

-Trevor

I was reaching those speeds with my 6.5-284 and the 155 Cauterucios, also, but, my primer pockets were shot after one firing.

 

[Hengehold]

I was reaching those speeds with my 6.5-284 and the 155 Cauterucios, also, but, my primer pockets were shot after one firing.

Interesting. I did not try reloading the brass yet from the pressure test but I did not have any pressure signs.
Did you see any pressure signs? Ejector marks or sticky bolt lift?
-T

 

[rardoin]

Just read that this bullet is .080 longer then the 140gr HVLD.

Would need about a .240+ FB!!! Assuming the ogive is pushed out 1/2 of that additional length. I'm not asking my smith to break out a throating reamer any time soon. I have a 6.5 x55 Imp barrel that is about mid life. When the throat erodes too far to chase 142's I may be game to play with a 155. If I recall Bob Cauterucio made/can make a 155gr..

Edit- That's what I get for skipping posts before posting.

 

[onelastshot]

I'd like to know what the result is in a .284 chamber?

 

[TZaun]

Interesting. I did not try reloading the brass yet from the pressure test but I did not have any pressure signs.
Did you see any pressure signs? Ejector marks or sticky bolt lift?
-T

By the time I would see ejector marks with mine, my primer pockets were gone. A little bit higher and then I'd get a little drag on the bolt lift. I should add that it was that way with any of the bullets I tried. It got much worse when I tried the Norma brass. I have no idea why I struggled so hard with primer pockets on that case. It's above my pay grade.

 

[IdahoSharpshooter]

I think Berger is in cahoots with the barrel manufacturers to force us to buy a new fast(er) twist barrel.

 

[Willie]

I ran the 155 EH on the Burger twist rate calculator using OAL of 1.478", an estimated G-7 BC of.340 in a 8 twist, at 59* w/1500' elevation. Used a conservative speed of 2,950 fps based on my speed with 160 .264 Matrix. Unless I screwed up, the stability in a 8 twist is in the comfortable column for my velocity @ 1500'.

My data is based on a 6.5 Sherman wildcat that shoots a 140 at 3200 fps w/ .235 freebore. This is not based on Berger's test data. The only known values are the OAL and weight. I used my matrix data and an extrapolation of form data to guess at B.C. Should fit nicely in my 3.7" Wyatt box.

After the hysteria that preceded the eld-x coming to market, I'll wait to see the data that the Litz group finds. You can bet they have plenty to test.