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300 weatherby Accumark

 
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  #36  
Old 11-16-2013, 02:13 PM
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Re: 300 weatherby Accumark

An Accumark in 300Wby is what Jesus would use if he hunted elk.

Any of the big 30's will easily do what you want. I personally like them better with a brake. I use my 300Wby Accumark to shoot varmints. It's that accurate. I believe the 300Wby is thee perfect elk cartridge. No problem shooting 100 rounds in a sitting with the factory Accubrake. Mine has a Leupold 8.5-25x50LRT on it. Works fine right out to 1000 yards. Either 210 Bergers or 200 grain Accubonds at 3100 fps work great. I like Accumarks so much I have 3 of them. A 300 and 2-257's. One with a brake and one without. If I didn't build rifles I would have more of them.

If I was going with a Sendero rather than trying to improve one from 300WM I would suggest just getting it in 300RUM. I hate the idea of rereaming factory barrels and it humps me up even more to even think about truing an action and then putting the same barrel back on. Like boring an engine oversize with deckplates and then using the old pistons.
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  #37  
Old 11-16-2013, 05:30 PM
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Re: 300 weatherby Accumark

Yeah, but factory Sendero barrels are good barrels. I wouldn't hesitate...
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The 284 is to the STW what a tricycle is to a Ninja.
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  #38  
Old 11-16-2013, 05:57 PM
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Re: 300 weatherby Accumark

On the Sendero barrels, for what they are, yes they can shoot pretty well, but you certainly have never looked in one. I have yet to see one with the chamber so crooked that the rifling on one side has 1/8" to 1/4" more freebore on one side than the other. Internally they are identical to the SPS barrels. Heavily tool marked up, incomplete lands and deep scratches going right across the lands. Even a rough as they are I have still seen plenty of them shoot 1/2 MOA.

Accumark barrels look like most customs internally. The chambers can still be crooked though.
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  #39  
Old 11-16-2013, 06:59 PM
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Re: 300 weatherby Accumark

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Originally Posted by Hired Gun View Post
On the Sendero barrels, for what they are, yes they can shoot pretty well, but you certainly have never looked in one. I have yet to see one with the chamber so crooked that the rifling on one side has 1/8" to 1/4" more freebore on one side than the other. Internally they are identical to the SPS barrels. Heavily tool marked up, incomplete lands and deep scratches going right across the lands. Even a rough as they are I have still seen plenty of them shoot 1/2 MOA.

Accumark barrels look like most customs internally. The chambers can still be crooked though.
My Sendero SF and 5R barrels are just as smooth when running a brush as all the custom barrels I've ran one down...And they will shoot 1/4-1/2 MOA average.

My .257 Accumark barrel will barely let a brush down it without hellacious force. When running a jag & patch I literally thought it was going to break my J Dewey rod and bend my Pro-Shot rod. It has several tight spots in it... I bought the gun brand new in late 2008 and put maybe 100 rounds through it total since then. It only shoots 1/2 MOA on good days, and on bad days 3/4-1 MOA groups @ 100 yards...Not impressive for a $2,300 rifle, when my $1,300 Remingtons will do twice that good...

Don't get me wrong, I love the gun, but as for the barrel's insides...Not impressed at all and I dread cleaning it because it's that big of a pain in the ass.

Should I send it back to Weatherby?
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"I'm just a peckerwood who lives in the hills with too many guns..." - Bob Lee Swagger

"Give me a minute...I'm good. Give me an hour...I'm great. Give me 6 months...And I'm unbeatable." - Col. Hannibal Smith

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Quote:
Originally Posted by WildRose View Post
The 284 is to the STW what a tricycle is to a Ninja.
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  #40  
Old 11-16-2013, 07:42 PM
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Re: 300 weatherby Accumark

Not to leave you hangin. A brush can't tell you much if anything. A tight patch on a jag will tell you a lot more. I think you need to get it to an accuracy smith for evaluation. It needs to be cleaned, bore scoped and then lead slugged. This will tell you all you need to know. When slugging an Accumark, I can feel exactly where the fluting starts and stops but it doesn't seem to affect accuracy. Overall they are one of the smoothest mass produced factory rifle barrels out there. I have never heard of an Accumark barrel like you are describing. Are you using Barnes bullets or moly by any chance?

If it tests out bad by the above method you could let Weatherby swap the barrel. It might be awhile before you ever see it again.

A good way to wreck a barrel is to swab it out with alcohol or some kind of brake clean/gun scrubber/acetone and leave it dry for a long period of time. Even stainless will rust pretty quick if left bone dry.

You got hosed on the price of your Accumark. They sell around here for $1700. When I bought mine they were $1200 retail. $1150 on sale.
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Build a man a fire and you heat him for a day.
Set him on fire and you heat him for life.

Only accurate rifles are interesting.

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  #41  
Old 11-16-2013, 07:56 PM
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Re: 300 weatherby Accumark

Quote:
Originally Posted by Hired Gun View Post
Not to leave you hangin. A brush can't tell you much if anything. A tight patch on a jag will tell you a lot more. I think you need to get it to an accuracy smith for evaluation. It needs to be cleaned, bore scoped and then lead slugged. This will tell you all you need to know. When slugging an Accumark, I can feel exactly where the fluting starts and stops but it doesn't seem to affect accuracy. Overall they are one of the smoothest mass produced factory rifle barrels out there. I have never heard of an Accumark barrel like you are describing. Are you using Barnes bullets or moly by any chance?

If it tests out bad by the above method you could let Weatherby swap the barrel. It might be awhile before you ever see it again.

A good way to wreck a barrel is to swab it out with alcohol or some kind of brake clean/gun scrubber/acetone and leave it dry for a long period of time. Even stainless will rust pretty quick if left bone dry.

You got hosed on the price of your Accumark. They sell around here for $1700. When I bought mine they were $1200 retail. $1150 on sale.
Man, I'm not new to guns...I know how to properly take care of them and what to use and not to use.

I only shoot Nosler Accubonds or Berger VLD's through it. That's all it's had it's entire life.

I would NEVER use alcohol or anything like that to clean a bore. I use I use Pro-Shot Copper Solvent IV for deep cleaning, and Rem Oil or Kroil for quick clean-ups or wet patching.

I didn't pay $2,300...I'd have to be a moron. That's MSRP. I only paid $1,350 for mine.
__________________
"I'm just a peckerwood who lives in the hills with too many guns..." - Bob Lee Swagger

"Give me a minute...I'm good. Give me an hour...I'm great. Give me 6 months...And I'm unbeatable." - Col. Hannibal Smith

Ignore everything I say, because I have a reading comprehension and memory problem...

Quote:
Originally Posted by WildRose View Post
The 284 is to the STW what a tricycle is to a Ninja.
Reply With Quote
  #42  
Old 11-16-2013, 11:14 PM
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Re: 300 weatherby Accumark

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Originally Posted by 1simplemann View Post
Well that does open up some possiblities for me. A customer of mine is an excellant gunsmith. Guess I'm gonna have to have a conversation w/ him next time I see him. I also was discussing this option w/ my long range customer who mentioned that he has couple of excellant loads for me to try in .300 Win Mag. He seems to think I'll be very pleased a Sendero in Win Mag especially w/ his loads since they are almost but not quite as fast as factory .300 WBY. If I want the WBY later, then I could have that one chambered by my gunsmith. Would the barrels be interchangeable?
Yep you should be able to rechamber the existing barrel to 300wby if you ever managed to shoot it out; or for 300RUM for that matter.
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