Huskvarna 9.3x57mm boredimensions

[Frank46]

Brithunter, was scrolling back to earlier posts and came across your post. I bought a husky in 9.3x57mm 98 mauser drom sarco a few years back and my bore measurements are identical to yours. The one thing that threw me off was the big difference between the bore and rifling dimensions. My husky also has the deeper rifling. There's a few projects in the works before the husky, getting some bullet molds, and lapping out the bore of my ruger #1 in 45/70 to open up the constrictions where the bbl band is and front sight has one also. Then a new 45/70 mold to see how she shoots. Frank

[Veral]

  Your comment about rifling depth brings up an important subject to be addressed.

  Though most believe it mandatory, deep rifing is not important for good cast bullet performce.  Smooth straight bores and rifling edges are the critical factor.  If the rifling is shallow, stronger bearing surface up front on the bullet is dictated.  If the bore isn't smooth enough, nor diameters uniform end to end, lapping always fixes it.  If the bore or throats are to large to shoot jacketed well, a proper size and design cast bullet will shoot superbly.  That's my business.

[Frank46]

Veral. oh so true. When I first did the measurements (twice) couldn't understand why the rifling was different. Then another poster at castbullets@gunloads told me he has just about the same measurements. Guess they didit that way for longer bbl life. Go figure. And we are so used to out (standard) 308-300 30 caliber bore dimensions. Frank