180gn Sierra 7mm
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180gn Sierra 7mm
Anyone have much experience with the 180gn Sierra in 7mm.
I am thinking of trying them in a .284win barrel that is on its last legs to try and get a bit more life out of it.
I am thinking of trying them in a .284win barrel that is on its last legs to try and get a bit more life out of it.
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OK I will give them a try.
The barrel does not shoot the Berger's at all now. Groups are five times larger than when I first developed the load. The throat has gone forward about 60 thou.
Just thinking that the Sierra's may handle the worn throat better than the Berger's and restore some sort of accuracy as the barrel has only done about 1200 rounds.
I will run off four or five different loads with the Sierra's and see if I can find a reasonable load. If not then it looks like I have a fire forming barrel.
The barrel does not shoot the Berger's at all now. Groups are five times larger than when I first developed the load. The throat has gone forward about 60 thou.
Just thinking that the Sierra's may handle the worn throat better than the Berger's and restore some sort of accuracy as the barrel has only done about 1200 rounds.
I will run off four or five different loads with the Sierra's and see if I can find a reasonable load. If not then it looks like I have a fire forming barrel.
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- Posts: 1136
- Joined: Fri Aug 15, 2008 9:09 pm
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- Posts: 1089
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- Posts: 837
- Joined: Fri Jul 23, 2010 10:21 pm
- Location: Gippsland, Victoria
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- Posts: 1089
- Joined: Tue Jun 28, 2005 10:55 am
- Location: Darling Downs SE Qld
Norm wrote:macguru wrote:Why not just rechamber the existing barrel ? Its probably just the throat thats worn ....
Its 28" now so would end up being a bit on the short side. Still it might make a nice short range fire forming barrel for my 7-08ai if I rechamber it..
Norm
The one I said did 4000rds ended up at 27". That barrel was competitive at 1000yds. My wife used it to shoot some great groups in the trials for the World Champs.
Cam
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