Has anybody reloaded for Sig 277 Fury yet?

med358-boise said:

Looking for responses with real data. Please do not clog up the thread with 20 pages of opinion about whether you like or dislike the cartridge?

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ARlife4me said:

are you asking about the 80k hybrid cases pressures or the 65k?

in either case i haven't, but have thought about getting that cartridge for ar chamberings.

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Seawolf69 said:

I've been working up a load for the Sig 277 Fury (Commercial brass; Not the hybrid case) .
Here's what I've done so far.

I actually started loading with 39gr of BL-C(2), then 40.
Rifle Sig Cross in 277 Sig Fury

Dies Lee
Primer Winchester Large Primer
Powder BL-C(2) 41 gr
FPS 2467 av for 13 shots. Measured with Garmin
Bullets - Midsouth (seconds) Red-Tip 130gr
Average grouping at 100gr .6 MOA . My best grouping at 400yds was 2 MOA
COL 2.75"
All shots fired from a bench
Temp 41º, RH 32º

I'll be loading 41.2 next week, which xxlrloading.com is the max load with a 10% buffer. And I will update the information with the new data from the new load. I will reduce the buffer and continue to bump up the grains by .2 until I see signs of over pressure.

Hope that helps.

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med358-boise said:

Thanks. I ran across the following information that might be helpful: the 277 fury case is 3.7% larger than the 7mm-08 in useable capacity, 3.1% larger than the 260 remington, and 5% larger than the 308 win.

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DustThroughaFan said:

You can buy pulled down hybrid cases from American reloading for anyone that's interested.

I've never loaded for it, I just buy the hybrid cases and turn them into 308's.

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