New 7mm Sierra, correct G1 BC?

[std7mag]

Sierra released their new 140gr, 7mm Tipped GameKing.
My issue is their posted G1 BC.
0.545 over 1,600 fps.

Seems kinda high to me.
The 139gr SST, and 140gr Nosler Ballistic Tip are both rated at 0.485 G1.
The 140gr Breger VLD is rated for 0.500 G1.

So, can we believe Sierra's claim?

 

[Fuj]

I wonder how much longer it is. Maybe like a hybrid with
a tip. Not a fan of tips but if it's a good 1/8 longer and you
have a good twist rate, I'd get 100 for a look see.....

 

[std7mag]

I just find it kinda skewed.
The 150gr Ballistic Tip & 154gr SST are rated at 0.525 G1.

 

[Darwin]

It’s possible, the horn 7mm 150 eldx is g1 .596 by applied balistics. However all but one the gamechanger line tested lower than advertised. That is not uncommon. The 140 TGK is not listed yet. I’ll watch for it.