
Originally Posted by
Charles E
Jo -- it turns out there are two Berger 60-grain bullets.
One is called a "varmint," it has a .082 meplat, and is .325 from the base to the beginning of the ogive.
The other is called "target & varmint" (i.e., match) and has a .055 meplat, and is .275 from the base to the ogive.
Both are 7.5-caliber tangent ogives.
The 64-grain bullet is like the 60-grain target & varmint, with .055 meplat, but is .289 from the base to the beginning of the ogive.
The reason I mention this is I doubt you'd see much difference between the 60-grain match & the 64-grain match, but you might well between the 60-grain "varmint" & the 64-grain match.
My Savage is from the early 1990s, and I don't know if they changed the chamber dimensions in later years. Plus, I fell for the "firelapping" craze when it first came out. After firelapping, my Savage didn't shoot any better or worse. It may clean a little easier; hard to say. But for sure it pushed the throat out .060. When I seat the 64-grain .015 off the lands, there isn't much bullet in the neck. I went with the 64-grain bullet to get the smaller meplat & still have as much bullet as possible (about .100") in the case neck.
So, If your Savage is for any reason like mine, and you're using the 60-grain "varmint" (.325 base to ogive), you may find the 64-grain worse, esp. if you try to jam it .010 or so.
I may try the 60-grain varmint -- the bigger meplat won't hurt at 100 yards, & not much at 200. In passing, I use to use 66-grain Fowler's in my PPC, and even at 300 yards it would group as well as the small meplat, 8.5-ogive bullets.
Another interesting Berger is the 70-grain "Target & Varmint" -- it is a boattail with a 12-caliber ogive and a .046 meplat. The boattail is .180, leaving a bearing surface of .317 , and it will easily stabilize in a 9-twist barrel. If I were to shoot the Savage in a 300 yard match, I would give it a try, though I'd just as soon skip long boattail bullets when I can. While this bullets has better "paper" specifications, the only way to know is to test. This for shooting Factory Class in a score match.
As a point of reference, I often shoot a 187-grain flatbase .30 caliber (BIBs bullets) at 1,000 yards, and we've also had pretty good success with a 140-grain 6.5 flatbase (Clinch River) at 1,000 yards. These are custom bullets, and for shooting groups rather than score; score is a slightly different game. But the point is that very good bullets shoot better than not-so-good bullets, even when they are at a theoretical disadvantage.
The Berger data sheet I have is dated 2/23/06; created by Eric Stecker of Berger Bullets.