a new cartridge we designed for the AR-10

Gary Reeder
[subject]
Tuesday, November 13, 2018, 16:21 (1963 days ago)

The cartridge is the new 257 Firecat. In the pic below, the 6.5 Creedmore is on the left, the new 257 Firecat on the right. The Firecat holds almost 10 grains more powder and works flawlessly in an AR-10 platform. We haven't done the final chrono work on it yet but by early testing it should give us 150 fps more than the 6.5 Creedmore.
[image]

What is the shoulder fireformed to?...

Huey
[subject]
Tuesday, November 13, 2018, 16:39 (1962 days ago) @ Gary Reeder

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38 degrees

Gary Reeder
[subject]
Tuesday, November 13, 2018, 16:41 (1962 days ago) @ Huey

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That should be an awesome bolt gun or Ruger #1 cartridge

Huey
[subject]
Tuesday, November 13, 2018, 16:43 (1962 days ago) @ Gary Reeder

Or Encore as far as that goes. Would be a true short action unlike the 257 Roberts...

it should be a good all around cartridge. I wanted a

Gary Reeder
[subject]
Tuesday, November 13, 2018, 16:46 (1962 days ago) @ Huey

cartridge that had plenty of power for medium size game in an AR-10 and this one fills that bill.

Well done Boss!!!

Drdougrx
[subject]
Tuesday, November 13, 2018, 18:49 (1962 days ago) @ Gary Reeder

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There is a special place in my heart for the 25 caliber! —

Jeff Spencer
[subject]
Tuesday, November 13, 2018, 16:48 (1962 days ago) @ Gary Reeder

What case are you using?

My guess would be 260 rem parant case

Kevin E
[subject]
Tuesday, November 13, 2018, 18:07 (1962 days ago) @ Jeff Spencer

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Think 243 Winchester...

Huey
[subject]
Tuesday, November 13, 2018, 18:12 (1962 days ago) @ Kevin E

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+1

Kyle
[subject]
Tuesday, November 13, 2018, 18:40 (1962 days ago) @ Huey

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Kinda

Steve
[subject]
Tuesday, November 13, 2018, 19:00 (1962 days ago) @ Kevin E

Its 243 case necked up to 257. But 308 is parent case to both the 260 and 243

Obviously longer than 2.825” of the Creedmoor (nvm)

TMartin
[subject]
Wednesday, November 14, 2018, 08:23 (1962 days ago) @ Kevin E

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Sweet

TMartin
[subject]
Wednesday, November 14, 2018, 07:57 (1962 days ago) @ Gary Reeder

Please keep us updated. There are some new Bullets in 25 cal with high BC that will be perfect for long range shooting at varmints and steel.

I see a Mossberg Patriot conversation in my future ;0)

Blake
[subject]
Wednesday, November 14, 2018, 08:32 (1962 days ago) @ Gary Reeder

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What is the base brass?

bigboar
[subject]
Wednesday, November 14, 2018, 10:58 (1962 days ago) @ Gary Reeder

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243. Using the 308 case we lose a lot more neck when

Gary Reeder
[subject]
Wednesday, November 14, 2018, 16:47 (1961 days ago) @ bigboar

fireforming.

How about the 260 case?

bigboar
[subject]
Friday, November 16, 2018, 12:17 (1960 days ago) @ Gary Reeder

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