This is the most probable for a lightweight barrel, especially without a lot of cooling timeFire a ten shot group. I'm beginning to thing your "fliers" are really the group size.
Page 3, post # 30. And no, the bullet is only in the bore long enough for the rifle to start recoiling straight back about 0.15". The muzzle will not have even raised then, unless the barrel is whipping around, which is entirely possible.Recoil starts the fraction of the second after the primer ignites the load.
I've tried different bullet weights and I found a heaver bullet will always print higher, than a lighter on at a faster velocity, due to the slower velocity and longer time in the barrel, thus allowing recoil/muzzle climb effect the round. I know we are talking only 1000 of a second but it stll effects the bullet since it is in the barrel.
The load could be it..
I'm at 2840fps. No pressure issues. 60.7 is about 3gr over book though.
Just picked up some 140sgk to try.
My brother calculated about 3/8th of an inch of recoil before exit, you have to include a LOT more in your calculation than bullet weight!!Page 3, post # 30. And no, the bullet is only in the bore long enough for the rifle to start recoiling straight back about 0.15". The muzzle will not have even raised then, unless the barrel is whipping around, which is entirely possible.
Makes sense. When shooting off bags, I tend to try to put as little interaction on my weapon as possible, and try to let the first 1/2" of recoil be "free-recoil" before it hits the muscle in my shoulder to stop it. I barely even put my shooting hand on the grip and use just the last finger pad on my index finger to touch the trigger shoe (basically, I shoot everything as close to BR style as possible) when sighting in and shooting for groups. I try to use as many of these disciples as possible when hunting, but I tend to hold the rifle a bit tighter.My brother calculated about 3/8th of an inch of recoil before exit, you have to include a LOT more in your calculation than bullet weight!!
A huge amount of accuracy happens in that first in barrel recoil!!
Bag set up, rifles interaction with the bag during recoil and bipod preload and how the rifle moves on the bipod in that in barrel recoil all make a huge difference.
If your pumpkin is weighing the stock down on the back your butt will drop down the amount of slope over 3/8 of movement, that's huge on a sporter stock, this translates into pitching shots high!
Adding weight is defeating my purpose for this rifle. If I can't figure this out, it's getting a proof. But that means new stock also.
Rich, I agree with you...but it shows enough promise to drive me crazy.
I spoke with a local Smith yesterday. He suggested cutting the barrel down 2-4" to stiffen it. It is a standard Savage sporter contour.
Dean, I'll give it a shot. Nothing to lose. Thx
When you bed it, tie a 3-5 LB weight to your front swivel hole with mono filament and leave it on there while the bedding dries. It will ensure a perfect tight fit that will never move around.