Case design

given what I know about the 6 ppc.I think a 7 mm on the 26 nosler with just a necking up to 7 mm would be a good thing.the 7 mm lrm of gunwerks is good but the cases are about 132 $ for 100 and a barrel job is about 1000$my other way is the 7 mm hart of bobby harts design that uses a Remington case in a ackly design.do any of you have one of the harts if so what are your thoughts on it?
gary b.
 
Gunwerks has to pay for all the media. If Jesus himself was running their lathe they couldnt make a chamber job total to $1000
 
There is a lot more to accuracy than the shape of the case. Do you shoot a 7mm magnum? How far has you pursuit of accuracy taken you? From your post, it is hard to know how far along you are in all of this. I found it pretty common for fellows to think that case design is more important to accuracy than it really is, while at the same time passing by measures that would have a great effect. Anyone that pays a thousand bucks for a barrel job has more money than sense. Of course someone has to pay for all of that advertising. You might want to survey the prices of several smiths who build winning long range benchrest rifles. In recent years, I have helped several friends with their custom hunting rifle projects, by pointing them at various component sources, and gunsmiths. The results have been gratifying. It has been somewhat like being the owner builder of a house, hiring all of the subs directly. Comparing what these rifles cost to prices commonly charged for complete rifles (in many but not all cases), it is amazing how much blue sky is in some rifle prices.
 
sirs I have a 300 Winchester magnum now but I was looking at a 7 mm bore because of what I have read and saw on the tv.I thought a inproved 7 mm mrem mag would offer a bit more speed and bobs 7 mm hart case was a great idea.it gives about al the speed you might need and should shoot great groups for a hunting long range rifle.it also can use the 7 mm rem mag case if you are up a tree.
gary b...oh by the way I am using a 700 mag action for the starting point with a palma barrel for the contour.
 
I have a 7mm mashburn super mag(developed 60yrs. ago) and a 7mm STW(developed 25 yrs. ago) and both are excellent in accuracy and speed. The Mashburn uses 300 win mag brass and the STW has factory brass.
I have looked at ones you mentioned and don't see any need for them over what I have. Long range hunting has a forum just for 7mm STW users you can look at.
Brush
 
What's the intended purpose? Unless you're shooting at really extended ranges, you'll burn a lot of powder for marginal gains (usually 150 - 200 fps over the standard length magnum hull). That said, I do have a 7mm STW I built on a 700 and it shoots well. Fast, flat, and pretty accurate too.

-Lee
www.singleactions.com
 
A friend who personally builds his own long range hunting rifles, and seems to favor wildcats, has had good results with a .300 Weatherby, necked to 7mm. Because he hunts in California, and no lead bullets are required, he has worked up an accurate load, using 168 grain bullets, and RL 25 (I think). In the last few weeks he as been evaluating many of the suitable powders, and this is the one that he settled on. He shoots short range benchrest, and is a skilled gunsmith, shooter, and reloader, and he knows how to work up and test loads. One of the main criteria that he has for case design, beyond capacity, is that a case be nearly full with powder. This results in better extreme spreads in velocity.

Another friend, who has done a lot of out of state elk hunting at long range, started out with a .338-.378 KT (for his first rifle built specifically for that application), and found that it drove bullets faster than their design velocities, and that when he tuned down to the velocities that were matched to bullet construction, that his cases were not as full as he would have liked, so he had a switch barrel rifle built on a slightly modified .338 Lapua case, that has a 37 degree shoulder, in both .338 and .30 calibers. While both shoot very accurately, the .338 took less effort to find a good load. He has shot under a quarter inch at 100 yards (5 shots) with that monster, which is as much a tribute to his shooting skill as to the caliber and rifle.
 
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