Too far forward is bad also as far as I understand . There is a center of gravity and a center of pressure and they are related to how well a bullet resists upsett during initial passage through the muzzel blast area and coming back down through the sound barrier.
A bullet should have its CG behind the Center of Pressure but I think the design of the varmint grenade moves it back too far and that is why it is hard to stabalize in addition to its length . If you have the right twist and you can get them shooting accurately then they may be ok as they will explode as they say but I still don't like the design .
I am not going to argue with you Al that is my opinion take it or leave it.
Experiences of other shooters :----
I posted this on another thread, but thought I'd start a new one and try for more responses.
My first trial with a box of 50 Gr Barnes Varmint Grenades thru an AR with 1 / 9 twist and they went thru the paper target sideways! These bullets were given to me since they couldn't stabilize them in his rifle with 1/14 twist.
These 50gr Varmint Grenades are very long for their weight. The box has a sticker saying 1/10 or tighter recommended.
They were loaded with 26gr & 27gr of Varget. CCI 42 Primer in LC brass. I didn't chrono them. Hodgdon's data show approx. 3200 to 3300 fpm
They are fragile at the hollow tip and my seating die was indenting a "ring" in them. This is in a New Hornady die with the follower in it.
Any suggestions on the proper way to seat these bullets without damage?
Maybe they need 1/7 twist?
Well, now I know where you're coming from.
thanks
al