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Old 09-26-2010, 09:18 PM
320pf 320pf is offline
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Join Date: Jun 2006
Posts: 304
Here is more load data for the 25-223Ar. I had a chance to try Hodgdon H335 today. It seems to be the best powder I have tried so far.

Load Data: (standard disclaimer as with any wild-cat, use at own risk and work up slow)

Hodgdon H335, Speer 100 gr SPBT (16 inch 1:10 twist barrel)
Charge
wt.(g)-------vel. (fps)

24.8---------2460
25.7---------2560
25.9---------2581
26.1---------2604
26.5---------2624

I hope this helps

320pf

Quote:
Originally Posted by 320pf View Post
I have more load data for this wildcat.

I am running the gun with the gas port turned off to see how it runs before I the port in. Here are some new results.

Load Data: (standard disclaimer as with any wild-cat, use at own risk and work up slow)

IMR4198 Speer 87g Hot-Cor Spitzer SP
Load =vel (fps)
20.0--2495
20.5--2531
21.0--2585
21.5--2663
22.0--2704

The Powley pressure calculator (found here: http://kwk.us/powley.html) indicates that the 22.0 g load is generating about 50000 CUP. One might be able to get another 50 fps out of this load.

320pf
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