TWO more 338-06's

I have tried a couple of loads and I have settled on this load using 54.5 grains of RL15, a CCI200 primer, a 225 Hornady Interbond, Lapua 06 brass, through my Oehler 35P Chronograph at just over 2700 feet per second, sighted 2.5 inches high at 100 yards. This should work well with my Boone and Crockett 3.5 x 10. I don't think I am going to shoot it again until just before I go hunting.

Geoff I don't know if it will do this all day as yours does...:D

338%2006%20TARGET.jpg
 
guntech said:
I don't have a close up of a barrel done that way but this is a picture of a blued action I did the same way as the stainless barrel.

It is a pattern I sand blast on a polished surface and then wire brush with a soft stainless wheel. Anyone who has bought a barrel from Gaillard will recognize how the pattern is made. :D
Click to expand...

Does the sleeve not move around when you're blasting it?
 
blargon said:
Does the sleeve not move around when you're blasting it?
Click to expand...

It works better on larger diameters as it fits tighter and the pattern shows better... I tape it tight on the barrel threads and on the overlap at the muzzle and handle it gently...
 
Those a very nice rifles, set up nice too.

I find it interesting that .02 less bullet diameter makes so much difference on the velocity as compared to a 24" Whelen I had. I was loading 60 grs of Rel15 under a 225 to get 2700....5.5 grs more powder to get the same velocity with the same bullet weight.
Maybe my barrel was slow and your 338 barrel is fast?

looks like that load will do the job for sure...
 
Rembo said:
Those a very nice rifles, set up nice too.

I find it interesting that .02 less bullet diameter makes so much difference on the velocity as compared to a 24" Whelen I had. I was loading 60 grs of Rel15 under a 225 to get 2700....5.5 grs more powder to get the same velocity with the same bullet weight.
Maybe my barrel was slow and your 338 barrel is fast?

looks like that load will do the job for sure...
Click to expand...


From what I have read, for some particular reason the .338-06 outperforms the .35 Whelen a lot of the time... maybe it has to do with the pressure curve formed with a smaller diameter bullet.
 
must be something like that.

I was always under the impression that regarding different calibers on the '06 case, all used slow burning powders like the 4350's, WW760, 4831's and slower except the Whelen....the 35 was the crossover point where you had to go to faster powders, like H335, 4064, Rel15 and Varget....and the slower powders would work up to 338 diameter...


guntech said:
From what I have read, for some particular reason the .338-06 outperforms the .35 Whelen a lot of the time... maybe it has to do with the pressure curve formed with a smaller diameter bullet.
Click to expand...
 
i use imr 4350 in my 338 06. 24 inch tube and it will run around 2750 with a full case of 4350 and a 225 hornady ib. i never got the best acuracy from quicker powders in my rifle.
 
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