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#194605 - 09/28/18 11:00 AM Barnes LRX in 7mm-08?
BuckRimfire
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I read that the Barnes LRX is designed to expand at lower velocities than their TSX series. This sounds like it might be good for use in the 7mm-08 in an Encore pistol. Any facts or opinions about how well that would work?

Load data for that bullet seems pretty scarce. Has it shown up in any of the newest manuals? (My newest is Lyman 49th.) Western Powder's website has a lot of data for the TSX but not the LRX. Anyone concerned about using their data for the TSX of the next-heaviest weight? (i.e. 140 gr TSX data with 139 gr LRX and 150 gr TSX data with 145 gr LRX)


Edited by BuckRimfire (09/28/18 11:00 AM)

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#194608 - 09/28/18 04:35 PM Re: Barnes LRX in 7mm-08? [Re: BuckRimfire]
karl
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I would say to call Barnes and see what they say. I use to email Ty at customer support on a regular basis to ask for the minimum recommended velocity for full expansion and maximum tested velocity on the XXXXXX part number bullet, but they recently started bouncing. Emails to the standard customer service email are unanswered. It's a shame as it was very useful info.

They use to say that you could interchange TTSX and TSX data for the same weight bullets, but better to ask and keep your fingers and eyes. If you find out, please post back here.

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#194610 - 09/28/18 06:36 PM Re: Barnes LRX in 7mm-08? [Re: karl]
cherokeetracker
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BuckRimfire you might want to double check on the part about the LRX opening up at lower velocities than the TSX.
Load Data is on their web site and can be retrieved by a smart phone as well.
Look at the data it shows the TSX and The TTSX in 140 gr using the same charges for the 139gr LRX

The 140 gr LRX is in a section by itself.
Comparing the 24" barrel to what? you didn't say how long your barrel is sometimes you can loose around 50-100 FPS depending upon barrels and twists.
Use some ALOX on those Barnes let em dry 24hrs That little bit of lube doesn't hurt.

10 powder choices for each bullet. on Barnes web site.


Edited by cherokeetracker (09/28/18 06:40 PM)

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#194611 - 09/28/18 06:58 PM Re: Barnes LRX in 7mm-08? [Re: karl]
Walkingthemup
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Last time I emailed Barnes customer service was on 23 August this year. They replied the following day. I've always found them to be extremely prompt and helpful with their advice.

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#194615 - 09/29/18 01:44 AM Re: Barnes LRX in 7mm-08? [Re: cherokeetracker]
BuckRimfire
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 Originally Posted By: cherokeetracker

Load Data is on their web site

Somehow I managed to overlook the "load data" link on multiple visits to their website. I thought it was odd that the maker of an unusual bullet would have no load data. I should have figured that out, but I'll say they could make the link a little more prominent.
 Quote:

Comparing the 24" barrel to what? you didn't say how long your barrel is sometimes you can loose around 50-100 FPS depending upon barrels and twists.

I was thinking of the 15" Encore barrel. Those seem to be abundant, at least if you've got $250 or so to spend. Expect around 2400 FPS with the 139 grain?

 Quote:
Use some ALOX on those Barnes let em dry 24hrs That little bit of lube doesn't hurt.

Thanks! I hadn't heard that tip


Edited by BuckRimfire (09/29/18 01:44 AM)

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#194622 - 09/29/18 03:12 PM Re: Barnes LRX in 7mm-08? [Re: BuckRimfire]
BuckRimfire
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I sent an email to Barnes asking if the LRX would expand reliably at 1900 FPS (which I estimate to be the minimum impact speed I would have). If they reply, I will report here.

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#194733 - 10/04/18 12:20 PM Re: Barnes LRX in 7mm-08? [Re: BuckRimfire]
BuckRimfire
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Got a reply on Monday:

 Quote:
The 139 gr. LRX will expand down to 1400 fps. Thank You Ryan Farr | Tech Support/Consumer Services Lead Barnes Bullets


Kinda perfunctory, but sounds like they would work. He didn't answer the part of the question whether the LRX is actually easier-expanding than the TTSX. I guess that's a trade secret. Fair enough.

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#194781 - 10/08/18 10:21 PM Re: Barnes LRX in 7mm-08? [Re: BuckRimfire]
karl
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I asked about the lighter 7mm ttsx and tsx for a 7-30 and it was all around 1800 to 1900

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