338-378 WBY and 250 Accubonds

[canny]

Anyone loading for this shoulder cannon?

Going to start with IMR7828SSC and see what it will do


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[Head Case]

I’ve got some 1x fired Weatherby 338-378 brass and some 338cal projectiles leftover from when I had my rifle. Maybe we could trade or something. Let me know if you’re interested.

[canny]

I’ve got some 1x fired Weatherby 338-378 brass and some 338cal projectiles leftover from when I had my rifle. Maybe we could trade or something. Let me know if you’re interested.

Send me a PM on what your thinking


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[S-3 Ranch]

Read up on a load ,
according to Quickload prediction with 250 Accubond...

121 gr of RL-33 = 99% case fill = 3,072 fps = 5,239 ft-lbs = 61,593 PSI = 99.5% powder burnt.

But I would start load work up no higher than 110 gr. The Lot of RL-33 I have is much faster burning than QL suggests. I wouldn't be surprised if you start seeing pressure signs between around 116 gr... Only one way to find out “”

[Texans42]

Call Thompson Long range. That’s their speciality

[bustacap]

If the 250 Accubonds work out for you and you need some more, I’ve got a couple boxes collecting dust along with 3 boxes of 250 gamekings.
PM me if interested.

[canny]

I ordered 3 boxes of the 250AB, so we should be good on those if they work out.


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