[jacob196]

Jakob
Short answer is I did not
I put it on my 6.5×55 shot some 475 yd targets and then a deer and left it on.  I will say it is a spectacular stock.  It is not like a chassis, in that it has a cant.  Meaning your right hand is placed at a bit of an angle- this is good if you have a good position.
A chassis will place your hand vertical in most cases.also good in certain circumstances.

I cannot give you a specific recommendation but I have no regrets in buying it.

Thanks very much for your feedback Eric. 🙂

[jacob196]

It is a very tricky problem, my local gunsmith was unwilling to bed the stock due to it flexing. He suggested installing an Atlas Worx bottom metal. I think he believes the plastic tikka bottom could be squirming with the higher torque values.
Will be ordering the bottom metal today then testing next weekend to see if it makes any difference. Fingers crossed

[jacob196]

You read my mind Dog, I plan to do just that: shoot the T3's withe the factory stock (particularly the -06) then swap stocks and using the same ammo, torque and bottom metal compare.  The only problem is I don't have properly worked up loads for the 30-06 or the 6.5×55. I might use factory ammo (gasp!).

I swung by the local public range yesterday on my way back from picking up my new 17HMR (ISSC SPA which I am impressed by without shooting it yet) and it has been destroyed.  Concrete table tops perched on sections of telephone poles are upended and the range closed…sigh.

I do most of my testing at a private range near my parent's place 150 miles away, but it roeally makes me sad to see how little some folks appreciate public facilities.

I say it's public but it is maintained by a local sporting club, and people insist on bringing improvised targets like old televisions and even exercise equipment then leave it for the contracted farmer to ruin his tires when he mows.  Take out what you bring in folks! ( I know none of you contribute to the problem but I wanted to rant a bit).

Anyway, testing is on my schedule Dog, so put your order in now and I will try to justify your purchase to your significant other lol.

P.s.  The berserk's grip has a slight cant -presumably like the Bolthorn and it fits naturally for me.

I know this is an old thread, but did you end up doing the comparison testing from before and after with your GRS Berserk install?