338 Federal Loads

[freddyG]

Make sure to use some decent rings. Those pictured suck.

 

[Jon Boy]

I was able to take it to 49 grains at 2795 with a slight extractor mark. Going to back it off a little and load some more.

Recoil was surprisingly mild and the point-ability of the rifle was everything I had hoped for.

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[prm]

If accuracy is there that will work great.

 

[Jon Boy]

Any idea what these might be?

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[prm]

Hornady 200 SST?

 

[Jon Boy]

Just seems odd with the grey tip but maybe that's why it's a second.

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[freddyG]

Finally got around to trying the 52g of 2230 topped off with a 160 ttsx. Best I could get is about 1.5 MOA. Groups got a few tenths tighter than that with cci250’s. All loads had a coal of 2.819.

Palma brass ran about the same as the above load with 53 grains. Cci 450’s.

Also tried Benchmark up to 49 grains, and accuracy sucked, around 3 moa.

I was hoping to get around the same accuracy as prm did. Maybe I’ll play around with seating depth, although seating them out further will turn the rifle into a single shot.

 

[prm]

Don’t hesitate to make them jump, a lot.

 

[freddyG]

Don’t hesitate to make them jump, a lot.

That’s as far down as I can get them to seat using 53 grains in palma brass. 53.5 grains starts to push them back up about .003

 

[freddyG]

I got prm’s load to shoot around 1/3 moa 5 shot groups. Very happy. FYI When using Palma brass, 1 grain extra gets the same velocity as LRP Lapua brass. If anyone has time, I added a link to a srp vs a lrp test done by benchrest shooters.

Small Rifle Primer Performance in the 308 ‘Palma’ Case (Part1) by Laurie Holland

We published a report on Large Rifle Primer (LRP) 308 Winchester performance in TS just over two years ago and promised a follow-up using Lapua ‘Palma’ brass and Small Rifle (SRP) caps. So, here we eventually are having done most of the range testing more than a year ago but the write-up was...

www.targetshooter.co.uk

Lapua Palma brass, 53 grains 2230, cci450 2.862 coal(one full band is visible). I guess single shot it is. I shouldn’t need more than one shot anyway.

 

[Jon Boy]

@freddyG what's your 200 grain hot core load and velocities? Those bullets can be had for cheap it looks like.

Tested some factory 185 soft points today. 1.5 moa, through on the magneto speed and it sucked it up to .5 moa. Had the same results for two more groups. Interesting finding. 2805 fps with ES of 15. Honestly I'm pretty happy with that for my dedicated timber rifle. Id imagine a 185 soft point would do fine on bull elk up close.

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[freddyG]

I didn’t chrono any of the loads. Yes, the hot cor bullets are dirt cheap, $16 for 50 bullets. I just used them to put some rounds down the tube. The gun looked like it didn’t get shot much by the previous owner.

 

[Jon Boy]

160s ttsx on sale at midway right now!


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