An Even More expensive way to shoot 338LM

The bullet gets more gyroscopic stabilization from spinning faster. Shooting them more slowly is not likely to improve stabilization.

Dan Lilja's site has an excel version of Rob McCoys bullet design code.
It is easy to set up bullet design parameters that indicate a high BC. The question is where is the center of mass, what twist is needed to stabilize (given by the code), but most importantly is the bearing surface large enough to stabilize it in bore.

I hope they get it figured out...
 
I talk to Wild Cat bullets and because the jacket is quite thin, some barrels cut right through it. He is aware of this and is working at getting thicker jackets so that the bullet is not just suited for some barrels. I'm going to wait till he has the new jacketed bullets and then test them again using the same powder load as I'm running with the Sierra Match Kings.
 
I talk to Wild Cat bullets and because the jacket is quite thin, some barrels cut right through it. He is aware of this and is working at getting thicker jackets so that the bullet is not just suited for some barrels. I'm going to wait till he has the new jacketed bullets and then test them again using the same powder load as I'm running with the Sierra Match Kings.

You will have to load it down some from your SMK load, these have a ton of bearing surface!

A buddy shoot some of these at 1000 yds for kicks using a slow load (approx 2600 fps) and they clustered into a group way smaller than the V bull, more like 5 inches. He was using a 338 Swamp Donkey case which be made using a 8mm Mag, a 340 Weatherby or a 416 Rem case as the parent. His normal load is 85.5g of IMR 7828 on almost any 250g bullet and I think he said he used 79g for these for the test. His handle is HPBT on this forum. If you need the load, ask him.

Also, he had a smith cut one up on his milling machine too. Very interesting design, the tips are CNC'd and have a double anchor system to hold 'em in the lead.

Funny thing, you can not use a kinetic bullet puller on these loaded rounds, there is not enough inside space to pull the bullet and when it does come apart, it sticks in the plastic powder/bullet area like a dart so load 'em light to start with and work up and remember, you only need 2650 fps and they are still sonic at 2400 yds!
 
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I personally think that if I have to drop 500fps to get these things to shoot, I'll stick with the SMK. As it is, with my new +40moa rail, I'll be able to drop bullets out to 2500yds. Richard G knows what he has to build to make us 338L Ackley Impoved crazies happy. I'll wait for him to deliver.
 
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