Toney said:
Ok guys need some more info thinking i got what i needed for shooting free recoil
my question is ear spread for stock Shehane MBR tracker, stock gets narrower as it runs toward trigger
as i said current bag is too narrow (3/8) so just wanna ck 3/4 is correct?
Nothing's going to be correct for Free Recoiling until you
standardize the width of the buttstock's lower tracking edge.
Cleanup butt work by a good Stocker is in order before your selection.
In the mean time read this [including comments at the bottom of the page] to understand both sides of the continuing debate on ear spread: http://bulletin.accurateshooter.com/2007/09/rear-bags-match-them-to-your-stock-profile/
Here's some additional info I feel is crucial in a stock's design present by Speedy:
BR-X Stock--American Design, Canadian Craftsmanship
The BR-X carbon fiber stock represents a third-generation design. The original Millenium, built by Lee Six, was a hollow shell. The new BR-X is carbon fiber over a foam core. In Light Varmint trim, it weighs just 1.5 pounds. Speedy tells us: "the latest BR-X has a low center of gravity, slight pistol grip, and the angles are really straight and true. It tracks well in the bags, and won't lift out of the rear bag during recoil. That's one of the purposes of the wedge-shaped rear section."
Speedy looked at the various benchrest stocks, and, with input from Tony Boyer, he worked out a design that mirrored many of the better features of existing designs with some significant enhancements. The first thing you'll notice is that the geometry is very uniform. The flats on the side of the fore-arm are perfectly parallel. The underside of the fore-arm is seamless and completely flat. Speedy explained "one problem we've seen with stocks that have a mold seam in the middle is that sometimes the two halves of the mold don't mate perfectly. Sometimes the mold is mismatched so one side is on a different plane. That creates all kinds of handling issues. If the bottom of the stock is convex, even a little bit, you lose a lot of stability."
Much thought went into the rear section of the stock. Speedy and Tony found that many stocks would start off tracking well, but by the end of the string they were pulling themselves out of alignment. Speedy noted that with some more conventional designs, they tended to ride up out of the rear bag after two or three shots. The BR-X works differently. It uses a wedge design, rather than a radius, so it tends to drive itself down into the bag on recoil. The BR-X is not the only stock to use a wedge in the rear, but it is different than other wedge designs.
According to Speedy: "On most other wedge stocks, the wedge tapers towards the pistol grip, making the 'V' wider towards the end of the buttstock. This will change point of aim as the stock moves. The BR-X has a wedge that is a constant 'V', with no taper from the end to the pistol grip. This does make the gun track better and stay on target better."
A look at the BR-X stock. Once here: http://www.viperactions.com/ click on SG&Y Stocks, on the left.
