COL for .300 Winmag - The HuntingPA.com Outdoor Community
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post #1 of 8 (permalink) Old 10-13-2019, 11:15 AM Thread Starter
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COL for .300 Winmag

This might be a bit of a stretch, but I am looking for someone who might have a box of Federal Premium .300 WinMag shells in 180 grain Nolser Accubond. If you have them, could you measure the cartridge overall length and let me know what it is? Thanks in advance if anyone has them.
I know the SAAMI COL is 3.340. I just want to know what these ones actually are without having to shell out $55 for a box.
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post #2 of 8 (permalink) Old 10-13-2019, 09:03 PM
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Out of curiosity are you trying to replicate factory ammo?
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post #3 of 8 (permalink) Old 10-14-2019, 06:23 AM Thread Starter
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No, trying to improve upon it.
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post #4 of 8 (permalink) Old 10-14-2019, 11:07 AM
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You have a good objective but what you need to know is the length limit that will fit in your magazine, this is usually the limiting factor. Seat at that length then back up till you fine the most accurate seating depth. Contrary to popular opinion when doing this you need to be aware that as you decrease the available volume in the case you increase pressure. It's not touching the rifiling that causes a big pressure increase but maintaing the same powder charge while decreasing case volume. When doing this you need to measure from the cartridge base to the front ogive of the bullet for accurate ammo as bullets out of the same box vary in dimensions.
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Last edited by jeffppc; 10-14-2019 at 11:11 AM. Reason: Additional information
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post #5 of 8 (permalink) Old 10-14-2019, 11:54 AM Thread Starter
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I'm aware of all that. I've been reloading for 30 years without injuring anyone or blowing up any rifles.

If anyone can answer my question, I'd appreciate it. Thanks.
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post #6 of 8 (permalink) Old 10-17-2019, 11:18 PM
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Quote:
Originally Posted by kudu58 View Post
I'm aware of all that. I've been reloading for 30 years without injuring anyone or blowing up any rifles.

If anyone can answer my question, I'd appreciate it. Thanks.
Contact Federal Ammunition customer service at 1 800 379 1732. Hope this helps.
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post #7 of 8 (permalink) Old 10-18-2019, 09:17 PM Thread Starter
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That will. Thank you very much.
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post #8 of 8 (permalink) Old 10-20-2019, 08:23 PM
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Quote:
Originally Posted by kudu58 View Post
That will. Thank you very much.
Your welcome.
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