Sierra 197gr for the 284

[Rogmay]

What are the thoughts out there on Sierra's new 197gr Match King for the 284, looks pretty sweet. Just wondering if anyone has had the chance to shoot it out of a straight 284! Too big, too slow or do you need something a little more to push it?

 

[MattPeetz]

Saw this too Roger. Nobody seems to have them yet. I would venture a guess and say it will be just like the berger 195's in the 284. By the time you loose the FPS the BC gets you back to where you are at with the 284. So really no gain for the punishment.

 

[Rogmay]

On a side note Matt, thanks again for the stock, just finished my 284 build! Savage PTA with your stock and a finished 30" Krieger barrel all sitting under a Sightron 10-50, looking forward to shooting it soon!

 

[BOBC]

View attachment 996318 What are the thoughts out there on Sierra's new 197gr Match King for the 284, looks pretty sweet. Just wondering if anyone has had the chance to shoot it out of a straight 284! Too big, too slow or do you need something a little more to push it?

THIS APPEARS LIKE PUTTING 10 LBS OF GROCERIES IN A 5 LB BAG !!!!!!!!!

 

[wwbrown]

Just what the 28 Nosler has been waiting for, 284 case capacity may be a little light for that bullet.

 

[Joe R]

Just what the 28 Nosler has been waiting for, 284 case capacity may be a little light for that bullet.

SAUM anyone?

 

[ShootDots]

SAUM anyone?

I think Joe is right with this one. You will need the extra boiler room to really take advantage of the high B.C. I am wondering though, from the pics, it appears to have a long bearing surface. If that is the case, that weight, coupled with a 7.5 twist, would or at least "probably would" translate into severe torque. Maybe enough torque to make it uncontrollable. But that is only an observation, actually trying them would be necessary. I will wait for the results to trickle in before I make the $$$ jump into that. BUT it could be a REALLY great F-Open combo if the torque is controllable!

 

[284winner]

I think Joe is right with this one. You will need the extra boiler room to really take advantage of the high B.C. I am wondering though, from the pics, it appears to have a long bearing surface. If that is the case, that weight, coupled with a 7.5 twist, would or at least "probably would" translate into severe torque. Maybe enough torque to make it uncontrollable. But that is only an observation, actually trying them would be necessary. I will wait for the results to trickle in before I make the $$$ jump into that. BUT it could be a REALLY great F-Open combo if the torque is controllable!

I think keeping it real is important. That bullet will need horsepower to move it. With that horse power comes recoil. Most guys love the 284 platform so the trade off in BC and velocity will be the toss up. Yes it does look very appealing until you consider what cartridge will be sending it down range. Like Matt peetz said, it's gonna be a fine line for the gain. Another bullet is the new 147 eld-m with almost a .7 BC. Push that fast enough in a 6.5-284 and it's gonna be a major contender for the same spot.

 

[Elwood]

I haven't been reading or hearing much about Bergers 195 grain 7mm offering, so the cynic in me tells me it's not really performing in F class (yes I have tried them in a 7/270 WSM) or it's performing so well that no one is sharing their success?
Will the Sierra fair any better? I certainly hope so.

 

[Laurie]

I was really surprised to see a 197 out from Sierra when people have barely had a chance to evaluate the 183gn MK, Ian. My initial look at the 183 (in 284 Win) was promising and I hope to get it to shoot really well in the new year. 195/197gn? seems a bit of a step too far ......... but we'll see.

 

[Joe R]

I haven't been reading or hearing much about Bergers 195 grain 7mm offering, so the cynic in me tells me it's not really performing in F class (yes I have tried them in a 7/270 WSM) or it's performing so well that no one is sharing their success?
Will the Sierra fair any better? I certainly hope so.

I'll be finding out real soon how the 195 Bergers work. Next Wednesday I'll be picking up my new 7SAUM barrel. I already have the Berger 195 and all the tools to go with it. I'm hoping to work up a load on the low node and use it on our next 1K yard match on January 8th.

However, I hope Sierra starts shipping those pills soon. I'm a big fan of having choices. IMO Sierra has seen the handwriting on the wall, either they step up their game or Lapua/Berger is going to monopolize the competitive bullet market.

Joe

 

[Elwood]

I'll be finding out real soon how the 195 Bergers work. Next Wednesday I'll be picking up my new 7SAUM barrel. I already have the Berger 195 and all the tools to go with it. I'm hoping to work up a load on the low node and use it on our next 1K yard match on January 8th.

However, I hope Sierra starts shipping those pills soon. I'm a big fan of having choices. IMO Sierra has seen the handwriting on the wall, either they step up their game or Lapua/Berger is going to monopolize the competitive bullet market.

Joe

Please let me know how you get on Joe.

 

[kyreloader]

Anyone seen how long this bullet is, I haven't seen anything posted and wanted to plug into a calculator to see if 1:7.5 twist was truly necessary.

Thanks.

 

[280man]

Anyone seen how long this bullet is, I haven't seen anything posted and wanted to plug into a calculator to see if 1:7.5 twist was truly necessary.

Thanks.

1.713 long

 

[280man]

https://sierrabulletsblog.com/2017/01/11/sierra-introduces-new-matchking-bullet/

 

[falconpilot]

I did some testing with the Sierra 197's..Straight 284, 32" 1:8:5 twist..

I'll have to go back to my notes for exact numbers. My freebore is .215 so bullets were seated back into ththe case pretty deep. The bullets shoot just as good as the 183's do, but as mentioned above, the loss of velocity makes the performance about the same for the two with the 197 producing noticeable more recoil. I can get pretty close to 2800 fast with 4350, but it trashes my brass to do so. I plan on doing further testing soon, and will provide actual numbers.

 

[XTR]

I wish they'd show some love for F-TR and make a sooper-dooper BC 30 cal in 200gr class instead of making another 284... not that it would matter, I've got more yellow boxes on the shelf than most B&Ms.

 

[memilanuk]

I wish they'd show some love for F-TR and make a sooper-dooper BC 30 cal in 200gr class instead of making another 284... not that it would matter, I've got more yellow boxes on the shelf than most B&Ms.

Is the 195 TMK not what you had in mind?

 

[XTR]

Is the 195 TMK not what you had in mind?

Monte, the most optimistic G1 for that bullet is still below the listed G1 for the 200H and well below the G1 for the 200-20x, and it looks like it has a longer bearing surface. I'm guessing it's going to be like the 208Amax. It will shoot, but only when you can't get the yellow boxes.

I haven't tried them, but it looks to me like they kind of gave it an OLE'! wave and put something out there. That whole TMK line in 308 really doesn't seem to improve on the existing bullets by much at all (or not at all in the 155), but they cost more.

 

[maxpower]

I did some testing with the Sierra 197's..Straight 284, 32" 1:8:5 twist..

I'll have to go back to my notes for exact numbers. My freebore is .215 so bullets were seated back into ththe case pretty deep. The bullets shoot just as good as the 183's do, but as mentioned above, the loss of velocity makes the performance about the same for the two with the 197 producing noticeable more recoil. I can get pretty close to 2800 fast with 4350, but it trashes my brass to do so. I plan on doing further testing soon, and will provide actual numbers.

Any updates on how this bullet went in 8.5" 284?