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Rra lar 8

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14 years 3 months ago #4837 by Edge
Replied by Edge on topic Re:Rra lar 8
I know a guy who hunts with a Sierra Match King. Kills every animal he's ever shot quickly and cleanly. But it is a 300gr. .338 caliber.

The guys I know who shoot the Nosler's have said they are really good also. We have both whitetail and mule deer here in Idaho, as well as Elk, Moose, Antelope, Bear, Cougar, Wolf, etc., etc., etc. The guys I know who use the Nosler have used it in .308, .30-06, .300wm, and .300ultra.

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14 years 3 months ago #4839 by wielywilly-g
Replied by wielywilly-g on topic Re:Rra lar 8
Awesome! Post up some pictures of groups out of it when you get it. Use sand bags or lead sled to take as much of the human factor out of the equation as possible so we can see the gun/ammo perfomance.

Bill

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14 years 3 months ago #4840 by spiker
Replied by spiker on topic Re:Rra lar 8
Believe me the shooting bench is all set ,just waiting on rra

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14 years 3 months ago #4911 by Edge
Replied by Edge on topic Re:Rra lar 8
Here are some comments from Gale McMillan, of McMillan Stocks, concerning barrel 'break-in'. At one time he was a premier barrel maker.

Comments collected from Gale's Gun Forum postings.

As a barrel maker I have looked in thousands of new and used barrels with a bore scope and I will tell you that if every one followed the prescribed [one shot, one clean] break-in method, a very large number would do more harm than good. The reason you hear of the gain in accuracy is because if you chamber a barrel with a reamer that has a dull throater instead of cutting clean sharp rifling it smears a burr up on the down wind side of the rifling. It takes from one to two hundred rounds to burn this burr out and the rifle to settle down and shoot its best. Any one who chambers rifle barrels has tolerances on how dull to let the reamer get and factories let them go longer than any competent smith would.

Another tidbit to consider--take a 300 Win Mag that has a life expectancy of 1000 rounds. Use 10% of it up with your break-in procedure. For every 10 barrels the barrel-maker makes he has to make one more just to take care of the break-in. No wonder barrel-makers like to see this. Now when you flame me on this please [explain] what you think is happening to the inside of your barrel during the break in that is helping you.

Consider this: every round shot in breaking-in a barrel is one round off the life of said rifle barrel. No one has ever told me the physical reason of what happens during break-in firing. In other words what, to the number of pounds of powder shot at any given pressure, is the life of the barrel. No one has ever explained what is being accomplished by shooting and cleaning in any prescribed method. Start your barrel off with 5 rounds and clean it thoroughly and do it again. Nev Maden, a friend down under that my brother taught to make barrels was the one who came up with the [one shot one clean] break-in method. He may think he has come upon something, or he has come up with another way to sell barrels. I feel that the first shot out of a barrel is its best and every one after that deteriorates [the bore] until the barrel is gone. If some one can explain what physically takes place during break-in to modify the barrel then I may change my mind. As the physical properties of a barrel don't change because of the break-in procedures it means it's all hog wash. I am open to any suggestions that can be documented otherwise if it is just someone's opinion--forget it.

It all got started when a barrel maker that I know started putting break-in instructions in the box with each barrel he shipped a few years ago. I asked him how he figured it would help and his reply was if they shoot 100 rounds breaking in this barrel that's total life is 3000 rounds and I make 1000 barrels a year just figure how many more barrels I will get to make. He had a point; it definately will shorten the barrel life. I have been a barrel maker a fair amount of time and my barrels have set and reset benchrest world records so many times I quit keeping track (at one time they held 7 at one time) along with High Power, Silhouette, Smallbore national and world records and my instructions were to clean as often as possible preferably every 10 rounds. I inspect every barrel taken off and every new barrel before it is shipped with a bore scope and I will tell you all that I see far more barrels ruined by cleaning rods than I see worn out from normal wear and tear. I am even reading about people recommending breaking-in pistols. As if it will help their shooting ability or the guns'.

More from Gale McMillan: www.snipercountry.com/Articles/Barrel_BreakIn.asp
The following user(s) said Thank You: mlotziii

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14 years 3 months ago #4915 by wielywilly-g
Replied by wielywilly-g on topic Re:Rra lar 8
He says nylon brushes are harder on barrels than brass. Wow, that is news to me. He also recommends when cleaning use many brushes (12) and only a couple patches, I have always done the opposite..a couple solvent wet brushes thru and then many solvent wet patches till clean, then a couple light oiled patches. Anybody use his method of cleaning? I do use one piece carbon fiber cleaning rods, so I probably don't have any damage from that.

Nice sharp rifling edges makes sense to me. I have never lapped or used abrasive compound on my barrels.

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14 years 3 months ago #4916 by spiker
Replied by spiker on topic Re:Rra lar 8
edge good info and it makes sense.willy i to have always clean like u solvent brushes a couple then many patches,then a dry one ,then one with light oil.

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14 years 3 months ago #4918 by guido1
Replied by guido1 on topic Re:Rra lar 8
Hello

Can't offer up any break-in or cleaning insight, but I do know that my 16" LAR-8 (one of the first off the assembly line) has always preferred 180 gr. ammo. It'll do OK on 175 gr. but really wakes up with a 180 gr. boat tail.
Accuracy significantly tapers off with bullet weights below 165 gr.

JMHO....

guido in Houston

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14 years 3 months ago #4919 by wielywilly-g
Replied by wielywilly-g on topic Re:Rra lar 8
Mine (26" bull) seems to agree with you...Of all the factory ammo I have tried, mine shoots fed GMM 175, 168, and S&B 180 the best in that order. The heavy stuff!

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14 years 3 months ago #5019 by Diamondplate
Replied by Diamondplate on topic Re:Rra lar 8
Well I too am a proud owner of a RRA LAR8, and am dieing to get my hands on the new polymer mags RRA is coming out with for them. I got the catalog & saw them in there, so in late May I E-mailed RRA and asked when we could be expecting them. The responded & said with in the next 60 days, that's all he could tell me. Well 60 days came & went, so I E-mailed again, and they've now said that they will be a few more months, as of the first week of Aug '10.
This is going to drive me crazy, but I guess it'll be worth it to all of us to have these things be quality rather than rushed into production & turn out to be crap.
But I went with the LAR8 in the moment, what I was really aiming for a was a Armalite AR-10. So now I'm deliberating between unloading the RRA to get me an Armalite. So I'm waiting to see how these new mags work out, if they are reliable, I'll probably stick with the RRA. Any input on this slight predicament.

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14 years 3 months ago #5029 by wielywilly-g
Replied by wielywilly-g on topic Re:Rra lar 8
Welcome to AR-10 DiamondPlate!

I have a bunch of the M1A1 inch and FAL metric mags and they work just fine. Why all worked up about polymer mags? Is this something I need? If it is just the weight, I could care less...I swear my 26" bull varmint is 50lbs already, and soon to get heavier. If polymer mags look better, I'm all in!

Don't get rid of the RRA unless it is to me! I too am waiting for a part from RRA and it might be months. I keep distracted by working on other gun projects. You have any other heaters?

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