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175s for a Rem 5R?

 
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  #1  
Old 09-07-2011, 05:13 PM
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175s for a Rem 5R?

Has anyone worked up loads for a Rem 700 5R .308 with 175gr. I ran some 168gr Amax with 42.5 gr of Varget in Lapua cases and 210 primers. They preformed pretty good but couldnt make hits much past 1050 yards. From what I know the 5R barrels were designed for a 168gr bullet. Any luck with 175 grainers? If so, what is your magic load?
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Old 09-07-2011, 08:52 PM
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Re: 175s for a Rem 5R?

Try 43.5 grs of Varget with an ogive measurement of 2.232". This should be a good strarting point, it was in my 5R gun.
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Old 09-07-2011, 09:17 PM
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Re: 175s for a Rem 5R?

Thanks,
I ran 42.5 varget with 168amax and they did ok but friends are saying to go with 175s. Ive got all the fancy stuff to reload but havent tried it yet. Still waiting on my Giraud.
Jason
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Old 09-08-2011, 04:53 AM
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Re: 175s for a Rem 5R?

Jason,
Try different primers, I was amased at the difference it made. So far the CCI BR-2 are showing the best groups, but your gun might like the Federal 210M.
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Old 09-08-2011, 05:53 AM
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Re: 175s for a Rem 5R?

Lapua brass Fed 210M 44.3 Varget .010 of the lands.
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Old 09-08-2011, 08:16 AM
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Re: 175s for a Rem 5R?

BC,

more likely than not, you're going subsonic at that distance. Frankly, I'm surprised that it's working this well for you. Haven't used the Amax 168s much, but the Sierra 168 was originally designed as a 300 meter bullet, and was never intended for longer ranges. It'll work at 600, but it's running out of steam at that point. Most go transonic/subsonic at around the 900 yard mark. I can't picture the Amax as being that much better (a .230 vs a .218 BC) that it'd hang in there at these distances. The 175, on the other hand, was designed specifically to remain supersonic from a 308/7.62x51 at these distances, and with this length barrel. Not at all unreasonable to expect decent 1000 yard performance from that combination. Velocity of the Lake City M118 LR is up a bit over 2600 fps (2580 @ 78 ft), and it has no problems staying supersonic at the 1000 yard mark.

Give it a try, it'll work just fine.
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Old 09-08-2011, 08:56 AM
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Re: 175s for a Rem 5R?

Quote:
Originally Posted by Kevin Thomas View Post
BC,

more likely than not, you're going subsonic at that distance. Frankly, I'm surprised that it's working this well for you. Haven't used the Amax 168s much, but the Sierra 168 was originally designed as a 300 meter bullet, and was never intended for longer ranges. It'll work at 600, but it's running out of steam at that point. Most go transonic/subsonic at around the 900 yard mark. I can't picture the Amax as being that much better (a .230 vs a .218 BC) that it'd hang in there at these distances. The 175, on the other hand, was designed specifically to remain supersonic from a 308/7.62x51 at these distances, and with this length barrel. Not at all unreasonable to expect decent 1000 yard performance from that combination. Velocity of the Lake City M118 LR is up a bit over 2600 fps (2580 @ 78 ft), and it has no problems staying supersonic at the 1000 yard mark.

Give it a try, it'll work just fine.
Great point Kevin I was thinking the same thing.

I'm not a Varget fan I know alot of guys are but your going to get more speed out of R15. Berger's 175 has the highest BC and will remain stable through the transonic. But so should the 178g AMAX
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