O.k., since we're talking about smaller cases with high pressures and larger cases with small pressures..... is it advantagous to have your case nearly full of powder (eg .260 rem with H4831sc at 97% capacity) or less full of powder (eg. 6.5-284 with w760 @ 76% capacity). Should you search for a load-cartridge combo that uses 90-100% of the case? Or does the % capacity make much of a difference. In my hunting rifles I try to load them in the 90's but I'm not always shooting .5moa either.
high Load density (how full the case is) is a desireable thing, as the powder is distributed evenly within the case, instead of lying on the bottom half. It is still possible to get good results from lower load densities, but it is gucci to have hi LD to facilitate uniform ignition.
Interesting to note that the swede will function in a s.a. savage. (even if its a $300 action). On that note..... if the barrel and installation is the most important part of the rifle, how important is the action? Realisticly would identical 28" krieger's shoot much different on a savage compared to a surgeon? (that may be a stupid question but I'm curious to hear the response
That is a very good question. The ultimate long distance junkies tend to use custom actions with zero headspace and very tight tolerances. There are several reasons: A custom action bolt is dead true to its integral lugs, and the bolt face is absolutely centered on the primer, and is absolutely perpendicular to the bore. In other words, that cartridge is held in perfect alignment with the bore at ignition. If the bullet has no run-out, it is hitting the rifling perfectly and it has the best possible potential to run straight. Also, the clearance between the firing pin and its hole is very very small. The bolt itself has very little clearance between the bolt body and the receiver to minimze play. They also have their headspacing and chambers cut to exacting specifications, so the chamber is defined ay a fully rigid bolt face and the taper at the front. Fire-forming makes this system even better.
Today's Benchrest shooters - the ultimate accuracy gurus - don't even like trued Remingtons, but they are still in play. These inconsistencies are corrected on the Remington with a process of accurization that puts lugs into true even contact, ennsures the firing pin is lined up with the middle of the primer and may include bushing the firing pin hole to make it smaller. The addition of a custom bolt essentially converts a Remington to near custom tolerances.
In other words, these are designed to handle high-pressure, high performance ultimately accurate cartridges.
In regards to Savage,
If a part is designed to move,
it will. Fire-formed brass helps, but does not prevent all movement .Furthermore, in order for the bolt head to articulate (float) the firing pin hole needs to be larger. This means that in cases where pressure traditionally run high (6PPC, 6BR etc.) you lack the support of the primer and cratering WILL result to some degree, even though the cartridge is below its true red-line.
This type of system works fine with most cartridges, for most types of shooting, but in a game where ultimate accuracy is the objective, and using high pressure cartridges running well into the "yellow" and minimizing the variables, movement and "play", a Savage action is an anathema to everything you are trying to achieve. (Watch the bolt when you pull the trigger on a Savage with an empty chamber). High pressure cartriges are a reality. they work and they work VERY well. If your only experience is shooting a .177 cal air rifle, you can get into trouble with loading loading your own withou following sage principles, but you can with any cartridge.
Jerry loves Savage actions and has a great deal of experience with them, and that is great. He shoots VERY well with them. I am beyond trying to make something work on principle or to make a point, I use what is a well-proven. I would rather look to the likes of Larry Bartholome, Lester Bruno, John Brewer, Carl Bernosky, and David Kent. They are at the top of their game, and none of them use floating bolt heads to achieve their accuracy at their given disciplines.
GO here and pick out the Savage-based rifles.
One might be quick to conclude that I do not like Savage. Not true at all. I still recommend the F-Class line of rifles to those wanting to get into F-Class shooting. I think these are an excellent combination of components that have great potential for accuracy.