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Degrees Of Rifle Accuracy by Ian McMurchy

 
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  #22  
Old 06-19-2012, 12:14 AM
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Re: Degrees Of Rifle Accuracy by Ian McMurchy

Quote:
Originally Posted by Sharpsman View Post
I can sum this up in three words!

FACTORY RIFLES SUCK!!
Id have to disagree. We own two tikkas one in .223 and one .243 they both shoot half inch with hand loads and shoot around 1.5 to 1 inch with different factory ammo. these are standard guns with no adjustments and they shoot better than most people can. I also did some reloading for a mate who also has a .243 Tikka and the first hand load I made up shot just inside a inch. they are easy to load for and will shoot nearly all ammo. The Tikka .223 shoots 1/2 inch groups with cheap russian ammo with steel cases.
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  #23  
Old 09-07-2012, 10:33 AM
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Re: Degrees Of Rifle Accuracy by Ian McMurchy

I've been intrigued by hunting rifle accuracy on a budget for years now. It's my mid-life crisis. I research a reputable budget gun (<$750) with the features I want, make a purchase after finding my best price, check the action screws, add good quality mounts and optics(leupold,nikon,meopta, zeiss), follow a barrel break-in procedure, and shoot factory ammo at a sturdy bench set-up. If the gun doesn't feature a bedded stock I upgrade to an aftermarket stock that does. Mounting scopes and swapping stocks while using a fat boy torque wrench is about the extent of my gunsmithing patience. I've recently purchased my sixth and final bolt action factory rifle. All six have flat bottom receivers, very little creep to crisp factory trigger pulls, five have trigger pull wts ranging from 2.5-3.5 lbs, five have free float barrels, and five use fully bedded alum block systems.

What I've found is that in order to produce 1" or less groups, one has to be really patient with regard to set-up and technique. Between my aging eyes and a thumper of a heart beat, I may not be able to deliver the techinque on a consistent basis.

Bottom line of this exercise is, all six kill deer equally well.
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  #24  
Old 12-06-2012, 07:06 PM
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Re: Degrees Of Rifle Accuracy by Ian McMurchy

Does any one know what moa group I could expect from match 300 WM out of a Sendero with a decent scope?
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  #25  
Old 12-12-2012, 11:06 AM
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Re: Degrees Of Rifle Accuracy by Ian McMurchy

Quote:
Originally Posted by jlrookstool View Post
Does any one know what moa group I could expect from match 300 WM out of a Sendero with a decent scope?
When I purchased my Win M70 Laredo in .300WM (basically the Winchester version of your Sendero - mine has a 26" heavy contour barrel, with a good stock, I believe it's an H-S Precision stock)... Mine shot about 0.9 MOA out of the box using match 190gr. SMK handloads, but after break-in, groups shrank to .75 MOA, and after "properly" bedding the action to the blocks, installing an aftermarket trigger, and squaring up my receiver, recoil lug, and barrel, it now shoots an average of .42 MOA with its favorite loads. I would expect similar results from your Sendero, as I believe on average, Rem 700's are a tad bit more accurate out of the box than Win 70's are... from my own past experience - not trying to hurt anyone's feelings.
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  #26  
Old 01-15-2013, 01:45 PM
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Re: Degrees Of Rifle Accuracy by Ian McMurchy

SOME FACTORY RIFLES DO NOT SUCK

I will list the factory rifles I have that are 1 MOA or better right out of the box with proper ammunition:

BSA Lonestar .25 cal precharged pneumatic air rifle. BSA was/is famous for its hammer forged match barrels and adjustable match grade triggers in their precharged pneumatics. FEED IT MATCH GRADE PELLETS, and it will amaze you.

CZ 452 American in .22LR. The best single stage trigger in any rifle I ever owned. It just gets better and better the more I shoot it, like any good CZ firearm should be. Hundreds of PD's have fallen to this rifle, and other varmints as well. I couldn't be more happy if it were an Anschutz.

CZ 527 American Varmint in .204 Ruger, pressure bedded 26" heavy barrel and walnut stocked. The perfect walking varmint rifle. Hits are seen in the scope, and it's as fast as any .22-250. I take shots with this rifle I would pass up with the .223 Rem on a windy day.

CZ 527 Kevlar Varmint in .223 Rem, free floated 24" heavy barrel in HS Precision stock. Both these CZ 527 varmint rifles can pull off long strings of rapid fire that far surpass the .22-250 before barrel heating becomes an issue. Your best accessories for these CZ 527 heavy barrelled rifles are spare magazines if you shoot PD's.....and a ton of ammo. These hammer forged CZ barrels seem to be military grade in that they shoot very well even when hot. 60 rounds between cleanings is common, with little noticeable falloff in accuracy. I just decide to take a break and clean the barrel.

IMBEL produced metric FN FAL sold by Springfield Armory as the SAR 4800. sub MOA with Ballistic Tip handloads. You need to let the barrel cool between 20-round magazines of fire for full accuracy. It has an X-Ring deresonator on the barrel, so it is not factory stock. However, the X-ring deresonator was only necessary to retune the barrel after adding the military folding bipod, which brought it back to sub MOA accuracy as before adding the bipod. The barrel is chrome lined, so copper fouling is extremely light and very easy to remove. This rifle stays accurate with little maintenance, as any military rifle should. It is possible to go thousands of rounds before cleaning of the gas system is necessary, just give the barrel a quick cleaning at the end of shooting. I have gone 200 rounds without cleaning the barrel, and it stays accurate. These rifles would go for around $2000 in today's market (DSA Arms sells similar rifles, made in the USA). The design life of the receiver is 80,000 full power military rounds. Your bolt gun is probably not that strong. I have owned two of these rifles, and they shot the same group sizes with the same ammo. I would rate this the most important rifle I have ever owned, because it is accurate, has long range firepower, unfailing reliability that is much better than a bolt gun in a high stress defensive situation, and very manageable recoil noticeably lower than a bolt rifle. Almost anybody could shoot it accurately. Not just for macho men. The trigger is heavy (but better than an AR-15), but it's a true blue romping stomping combat rifle and I bought it for brush hunting mainly. It's an absolute blast to shoot. Sold all my AR-15's and haven't looked back.

CZ 550 in 7x57mm Mauser. A rare rifle, set in a new style American walnut stock. Walnut has lots of figure. Really a nice rifle. People ask, "Is that a Sako?" Only 100 were imported into the USA back around 2010/2011. I shoot a Hornady 162 A-Max that is seated WAY out, so I needed .30-06 magazine length receiver to magazine load it. I have 3 loads worked up and a Norma factory load that all shoot sub MOA. CZ no longer offers the 7x57mm chambering in either their USA or European catalogs. The 7x57mm and Hornady 7mm 162 A-Max are known as a match made in heaven. Terminal performance is close to perfection from what I have read and my own experience. My mule deer bucks were killed in 2011 and 2012 with that bullet. Neck bone was blown apart with 38% weight retention, bullet recovered under offside skin. I was aiming for the neck bone at 200 yards and hit it dead center. The A-Max has developed a better reputation than the Berger VLD in this caliber and at far lower cost. This is my go-to long range plains game rifle and bullet. The bullets are so cheap you can practice on prairie dogs before big game season opens. That helps accuracy a lot.

I own all these rifles at the moment, with no intention of selling any of them. Some factory rifles HAVE been disappointments, but not these.

Phil
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  #27  
Old 01-16-2013, 10:53 AM
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Re: Degrees Of Rifle Accuracy by Ian McMurchy

Speaking of "out of the box" accuracy, the last few rifles I bought have been insanely accurate (and my luck has been at an all time high - at least as far as buying rifles with great barrels with minimal imperfections).

The most impressive, and probably never seen again phenomenon was the S&W M&P15T AR15 I bought back in 2005... back then the "T" models were top of the line, with Troy MRF mid-length free floating foreends, Troy flip up BUIS, etc. I got this rifle to the bench, not expecting much better than 1.5 MOA - and my first 5 round group measured .88".. I bought fell off the bench! From there, as the barrel broke in, the groups shrank and shrank. This suprised me to much because this rifle has a lightweight M4 profile chrome lined 16" barrel! Now, since I have added a JP single stage trigger and an H2 buffer, it shoots consistent 5 round groups into .7" - .75" with my handloads, 68gr. Hornady Match or 69 gr. Matchkings.

Another was a Remington M700 SPS Varmint .308. This rifle was fairly cheap - mainly because of the stock... I wanted a 700 PSS, but didn't want to pay for one.... after some research I found that the SPS V/T had the same barreled action as the higher end models, but with a cheap, plastic SPS stock to keep cost down. Since I wanted an adjustable cheek riser, rather than shelling out the dough for a PSS, I bought the SPS Varmint, which has a 26" heavy chrome-moly barrel. It also has the X-mark pro trigger, which I didn't care for too much. Out of the box, the rifle grouped 10 shot groups right at one MOA. After break in, I got it down to about .9". Then, I cut the groups IN HALF by simply adding a stock. I added a Bell & Carlson A5 tactical stock, which has an aluminum bedding block and adjustable LOP and riser. Then the groups shrunk to .58". Then, I shelled out $$$ for a Jewell trigger, and perfected my handloads, and found a 165gr. Nosler BT load that I could group into .47". Currently, I am working on a 168gr. Barnes T-TSX load that I believe is going to group even better, already down to .4".

Right now, I am working up a load for a T/C Icon - chambered in ,260 Rem, with a medium contour fluted barrel. This rifle, wow... I'm in love. Shoots .75 MOA out of the box...
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"It can be - done quickly, done correctly, or done inexpensively ... Pick any two."

"A government big enough to give you what you want, is strong enough to take what you have." -T. Jefferson
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  #28  
Old 03-29-2013, 04:55 AM
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Re: Degrees Of Rifle Accuracy by Ian McMurchy

My .308 Howa 1500 is a solid .75 shooter with 175 grain Nosler CC over 45 grains of N150. I have never altered the trigger and I have it in a Medalist stock from Bell and Carlson.
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.308 Howa 1500, 24" varmint barrel, Harris bipod Bell & Carlson MkII tactical stock. 4-14x50 tactical scope from Wonder Optics.

http://web.me.com/rdsii64/shooter64
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