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Joined: Jan 2019
Posts: 2,163 Likes: 2
Campfire Regular
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OP
Campfire Regular
Joined: Jan 2019
Posts: 2,163 Likes: 2 |
About to load up some GMX. Anybody know what Hornady recommends for a seating depth? How far off the lands?
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Joined: Feb 2010
Posts: 1,553
Campfire Regular
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Campfire Regular
Joined: Feb 2010
Posts: 1,553 |
I don't know what Hornady recommends, but I would (do) treat them like Barnes TSXs. Keep them at least 50/1,000 off the lands.
NRA Endowment Life Member, G.O.A supporter
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Joined: Nov 2007
Posts: 29,653 Likes: 5
Campfire Ranger
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Campfire Ranger
Joined: Nov 2007
Posts: 29,653 Likes: 5 |
I don't know what Hornady recommends, but I would (do) treat them like Barnes TSXs. Keep them at least 50/1,000 off the lands. ^ That; and it’s worked quite well for me.
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Joined: Nov 2007
Posts: 4,914 Likes: 2
Campfire Tracker
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Campfire Tracker
Joined: Nov 2007
Posts: 4,914 Likes: 2 |
Load at -.040, -.080, and -.120 and see how they do. I tried this w my ‘06 and 150’s. The clear winner was -.120.”
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Joined: Jan 2019
Posts: 2,163 Likes: 2
Campfire Regular
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OP
Campfire Regular
Joined: Jan 2019
Posts: 2,163 Likes: 2 |
Wow, 1/8” jump? That’s almost shocking.
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Joined: Feb 2008
Posts: 5,735
Campfire Tracker
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Campfire Tracker
Joined: Feb 2008
Posts: 5,735 |
Using any of the Monos, .050 off is as good a place as any to start. I have solved more than fifty rifles for monos, and have learned that I pick a place to start, work 'em up to pressure and if they are not shooting into an inch I move up to .005/.010 off and just start working back in .010 increments. A not inconsequential number will shoot very well up close to the lands. Some need to be a long way off. The only way to be certain is to be methodical. A lot of people are happy with what they get out of the gate at .050 off, but that is a long way from being the best for a given rifle. I have also seen rifles that were hyper critical for seating depth and .005 +/- made an 8 inch difference in group size.
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Joined: Jul 2007
Posts: 8,203
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2007
Posts: 8,203 |
With Barnes, have yet to deviate from the recommended 0.05. Works well.
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