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#5850458 - 07/27/15 02:28 PM 195 Berger Hybrid 7mm
kmon1 Online   content
junior

Registered: 09/27/06
Posts: 20311
Loc: Texas
Saw on another site the 7mm 195gr Berger Hybrids are in the works. Numbers that are from their testing look pretty good but you will need a faster than standard twist for them


Quote:
195g Berger hybrid .284 caliber
Some have been made and are being tested. Quantities have not been shipped for distribution yet. We're close, within weeks.

Measured Performance:
G1 BC = 0.755 (Average from 3000 to 1500 fps)
G7 BC = 0.387 (Valid for all speeds)
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#5850479 - 07/27/15 02:37 PM Re: 195 Berger Hybrid 7mm [Re: kmon1]
Hunter-Steve Offline
Tracker

Registered: 01/17/10
Posts: 713
Loc: Plano. TX
let us know if you get them and how they perform.
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#5850495 - 07/27/15 02:48 PM Re: 195 Berger Hybrid 7mm [Re: kmon1]
kmon1 Online   content
junior

Registered: 09/27/06
Posts: 20311
Loc: Texas
I will not be trying them since I do not own a 7mm with a fast enough twist and not rebarreling another rifle just to shoot a longer bullet.

But there are some on this site that have the rifle ready for these when they are available.

One thing I do like the hybrids are much less critical about seating depth than the VLDs
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#5850598 - 07/27/15 04:03 PM Re: 195 Berger Hybrid 7mm [Re: kmon1]
jeh7mmmag Online   happy
gramps

Registered: 11/01/04
Posts: 12625
Loc: Colleyville, DFW, TX
1-9.5 is common. What twist are required? My guess for 195 you would need at least 1-8
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#5850611 - 07/27/15 04:09 PM Re: 195 Berger Hybrid 7mm [Re: kmon1]
kmon1 Online   content
junior

Registered: 09/27/06
Posts: 20311
Loc: Texas
One barrel maker has calculated at least 1:8.4 and is recommending 1:8.2 or 1:8
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#5850700 - 07/27/15 04:59 PM Re: 195 Berger Hybrid 7mm [Re: kmon1]
dee Offline
Extreme Tracker

Registered: 04/10/10
Posts: 4665
Loc: Red River way
1:8 or faster would be ideal.


Last I heard was that these were going to be under a new extra long range lineup.
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#5850738 - 07/27/15 05:20 PM Re: 195 Berger Hybrid 7mm [Re: kmon1]
ChadTRG42 Offline
THF Trophy Hunter

Registered: 09/16/09
Posts: 9433
Loc: Lewisville, TX
With the data I have on the bullet length, I'm showing a 1:8.2" twist is minimum, so an 8" twist would be great. I just ordered 4 barrels from Bartlein for inventory and 3000 of these bullets from Berger.

If you run this bullet about 2800-2900 fps or more, this would be the slickest bullet on the market for highest BC. I'm looking into what parent case to push it with. I'm leaning towards a 7mm/300 Win Mag, since I have plenty of brass and dies already. A 7mm Dakota would also be good, but requires all new dies and brass. Something in the 70-80 grains of powder is good. The 7 RUM and 28 Nosler would be too over bore and have too little barrel life, IMO.
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#5851407 - 07/28/15 06:02 AM Re: 195 Berger Hybrid 7mm [Re: kmon1]
dee Offline
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Registered: 04/10/10
Posts: 4665
Loc: Red River way
7-300 is a great and often forgot about option. I bet it will get you pretty close to your goal velocity.
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#5851532 - 07/28/15 08:18 AM Re: 195 Berger Hybrid 7mm [Re: dee]
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
I can't rememver if my 7 Rem Mag is a 1:8" or 1:8.4". I plan to try these, and really hope they run on a compressed load of Retumbo as does the 180's I'm currently running. The 180's are making 3040 fps MV, so I should be able to get north of 2900 fps with the 195's.

My biggest problem getting to know them at distance will be holding too much wind correction. These are just not going to get drifted very much, even in a 10 mph cross. My 6.5 Creedmoor for instance is .8 Mil correction at 500 yards in 10 mph wind. I suspect the 7mm 195's will literally be half that. I reserve the 7 Rem Mag for elk and mule deer. The week long mule deer lease I have been invited to for the second year in a row is country that long shots are not only a possibility, but probable. Of course I want the shot as close as I can get it, but I go prepared for a long shot. These 195's are going to hit like a sledge hammer!
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#5851662 - 07/28/15 09:32 AM Re: 195 Berger Hybrid 7mm [Re: kmon1]
Judd Online   content


Registered: 01/22/09
Posts: 10762
Loc: Sachse, TX
A lot of the guys shooting the TexasBenchrest.com (400y shooting mini clays 2.25") are going to the 7mm's...specifically 284/284 Shehane/7 Walker. I've been holding out because I don't shoot every one of their matches but after getting spanked in the May match by the 7mm's and 300's it is making me think I need a big gun. If I was getting I'd end up with a 7 Walker, I don't want anything with Shehane's name on it and I think the improved 284 is where it's at.

Biggest problem is I hate recoil...but this new bullet has me scratching my chin. I've been waiting for my shooting buddy to get his 284 improved (it's a Shehane but he didn't want his name on his stuff either haha) so I could shoot it to see if it's worth the recoil. Now I'm really thinking....
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#5851685 - 07/28/15 09:45 AM Re: 195 Berger Hybrid 7mm [Re: Judd]
dee Offline
Extreme Tracker

Registered: 04/10/10
Posts: 4665
Loc: Red River way
Originally Posted By: Judd
A lot of the guys shooting the TexasBenchrest.com (400y shooting mini clays 2.25") are going to the 7mm's...specifically 284/284 Shehane/7 Walker. I've been holding out because I don't shoot every one of their matches but after getting spanked in the May match by the 7mm's and 300's it is making me think I need a big gun. If I was getting I'd end up with a 7 Walker, I don't want anything with Shehane's name on it and I think the improved 284 is where it's at.

Biggest problem is I hate recoil...but this new bullet has me scratching my chin. I've been waiting for my shooting buddy to get his 284 improved (it's a Shehane but he didn't want his name on his stuff either haha) so I could shoot it to see if it's worth the recoil. Now I'm really thinking....


Brake?

Why not a saum or wsm on a long action.


Edited by dee (07/28/15 09:46 AM)
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#5851711 - 07/28/15 10:04 AM Re: 195 Berger Hybrid 7mm [Re: kmon1]
Judd Online   content


Registered: 01/22/09
Posts: 10762
Loc: Sachse, TX
Yes on brake....I'm still a kitty when it comes to recoil. I've shot enough shotguns to know what a flinch is and it's not worth it (one of the few reasons I all but quit shooting sporting clays/5 stand, I've got one and I was always the guy shooting light 7/8 to 1oz loads).

I think a 7wsm would be awesome....but brass for either of those are almost non-existant and you can get good Lapua 6.5-284 brass and Bullets.com has a deal with Nosler (I believe) to make good 284 brass and they are getting pretty regularly.
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#5851716 - 07/28/15 10:07 AM Re: 195 Berger Hybrid 7mm [Re: kmon1]
5 Stand Dan Online   content
Pro Tracker

Registered: 06/23/12
Posts: 1489
Loc: DFW
I found a good article on a 7mm/300 Win Mag wildcat, called the 7mm Practical. Looks very interesting to me, easy to form the brass and better barrel life than the overbored magnums. It appears to be very efficient with the amount of powdered burned. I bet it would get that 195 moving downrange at a good clip.

Link->7mm Practical
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#5851746 - 07/28/15 10:18 AM Re: 195 Berger Hybrid 7mm [Re: kmon1]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 23463
Loc: Texas
How does a 7mm 300 win mag not classify as an overbore magnum?
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#5851764 - 07/28/15 10:27 AM Re: 195 Berger Hybrid 7mm [Re: redchevy]
5 Stand Dan Online   content
Pro Tracker

Registered: 06/23/12
Posts: 1489
Loc: DFW
Originally Posted By: redchevy
How does a 7mm 300 win mag not classify as an overbore magnum?


In my opinion it's not, but it is getting close. Cartridges like the 7mm STW or 7mm RUM use a much bigger case and don't get that much more out of it.
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