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6.5/300 wby

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Unread 10-08-2007, 05:14 PM
Junior Member
Join Date: Oct 2004
Location: Selinsgrove Pennsylvania
Posts: 2
6.5/300 wby

anyone have experience with loads for 6.5/.300 wby mag. started showing pressure signs at 80 grains retumbo. chronoed decent, sd of 8. know i can do better but before i go burning barrels and spending money, just wanted to know if there are any suggestions out there. thank you
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Unread 10-08-2007, 11:11 PM
Bronze Member
Join Date: Oct 2007
Posts: 77
What bullet are you planning on using. I am hinking your going to use either the 142 MK or one of the other 140grn type bullets. Try Reloader 22 and start with 79grns and work up to around 81grns. You should get excellent accuracy. In a 26" barrel, using 81grns of RL-22, you should get right around 3500 to 3550fps. If you have a 30" barrel, your looking at 3600 to 3650fps. My buddy shoots a 6.5-300 Weatherby with a 30" pipe. He uses the 139grn Lapua Scenar and runs it hot. He's getting 3700fps with this bullet. It's very accurate and fast, however, barrel life is short. I hope his helps.

Let me know what twist rate and length your barrel is. Also, what bullet are you planning on using. I will try to get some more info from my buddy. He is out of town right now, but I will still try to contact him.

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Unread 10-09-2007, 04:17 PM
Silver Member
Join Date: Mar 2006
Posts: 180
Retumbo was too fast for mine with 140s, did OK with 123s.

I used a LOT of H870, but got away from it.
The 6.5-300 WWH has been discussed a little here - you might try a search and/or you may also find this of interest:
eshell 6.5x300

The beatings will continue until morale improves.
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