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Old 11-20-2021, 05:29 PM
B23 B23 is offline
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Join Date: May 2016
Posts: 669

I've shot 40gr Nosler BT's from my Seekins SP15 with its 7tw barrel, I think they use Rock Creek barrels, and never had any problems. It actually shoots that Nosler 40gr BT ammo pretty well.
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Old 11-21-2021, 03:40 PM
moorepower moorepower is offline
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Join Date: Mar 2011
Posts: 1,481

My 1-8 24" AR barrel shoots 40 vmax Fiocchi in to 3/8" and have never lost a bullet, but with rifle length gas system won't always pick up another round. A 16" 1-7 shoots them into about an inch, which is what it does with most factory ammo, again I have never lost a bullet. Using Western Powder CIP data for A2200, which is 3900ish fps for the 40 Vmax, I shot in a 1-9 Savage 26" and a 1-12 24" Remington 700 and neither lost a single bullet.
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Old 11-22-2021, 12:30 PM
Johnly Johnly is offline
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Join Date: Sep 2006
Location: Eugene, OR
Posts: 883

The only bullet I could spin to destruction regularly was the 50 gr. Remington PLHP out of a 1/7 223 barrel, but the same ammo worked just fine in a 1/9 barrel.
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Old 11-22-2021, 01:28 PM
Grey_Wolf Grey_Wolf is offline
Join Date: Dec 2014
Location: Alberta
Posts: 93

My 20 Extreme with an 8 twist Jury barrel can't shoot anything (reliably) under 40 grains. If they get to the target they are keyholed and it's more like shotgun patterning. I built it with the 55 grain Berger in mind and never considered that they would be discontinued and I would need to look for another bullet. A 9 twist would probably would have worked for them and may be a little more forgiving with lighter bullets but not sure. Fortunately the 40 grain Berger shoots just as well in that barrel.
Unfortunately for us up here there is a very limited availability of small caliber bullets. I get jealous reading posts with four or five different makes of small caliber bullets being mentioned, all of which are not available here.
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