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POI change on coldbore shot

 
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  #1  
Old 11-29-2013, 08:19 PM
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Join Date: Aug 2008
Location: Forks, Wa
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POI change on coldbore shot

Hey guys, for the life of me I cant figure this out...I shoot a custom 338 RUM.. it is a real tackdriver....shoots well into the 1/3 moa to 600 yards...Never really pay attention to it since I shoot a fowler everytime i shoot steel...well this hunting season I was humbled...Hunted with a fouled barrel shot a buck at 588..10 inches right....No wind.. shot again and hit perfect...Got home cleaned gun went out and shot...fouled barrel...proceed to shoot a 2 inch group at 500... last week went to shoot again before another hunting trip...same fouled barrel (5 shots)...1st shot10 inches right at 500...then 4 right on top of eachother in under 2 inches....Thought it was me.. went home cleaned gun.. fouled barrel..waited an hour and shot cold bore shot again 10 inches right, and 3 dead center....Just went to colorado on deer hunt and this was wagging the back of my mind the whole time...lined a buck up at 614, and actually gave him 2 minutes left( his brisket). and hit about 4 inches back of his shoulder..killed him dead...approx 10 minutes later, just for fun.. found a volleyball size rock at 720 and pouded it twice...So what is the deal here..Cant go around shooting my gun every 10 minutes while I am hunting .shooting 225 gr accubonds with 98.5 gr of h1000 going 3175 fps....28 inch benchmark barrel...thanks and look forward to a response...hopefully Jeff ( BROZ) has an answer for me
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  #2  
Old 11-30-2013, 04:52 AM
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Join Date: Aug 2003
Location: NC, oceanfront
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Re: POI change on coldbore shot

Well it sounds like you've prepped for ******* around.
If you've decided now to hunt, you'll need to prep for this instead.
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  #3  
Old 11-30-2013, 10:30 AM
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Location: Forks, Wa
Posts: 138
Re: POI change on coldbore shot

so you are saying WHAT,,, CANT REALLY PREP FOR 10 INCH MOVEMENT...IS IT BEDDING..STOCK IS FREEFLOATED..RUNNING OUT OF ANSWERS....WHEN I SHOOT AND HUNT I DONT PISS AROUND...ALL BUSINESS..WHERE I HUNT IN WY AND OTHER WESTERN STATES,,90% OF PEOPLE WOULD NEVER MAKE IT IN THERE..ALOT HARDCORE...JUST LOOKING FOR LOGICAL ANSWER
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  #4  
Old 11-30-2013, 12:19 PM
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Join Date: Aug 2003
Location: NC, oceanfront
Posts: 3,369
Re: POI change on coldbore shot

Your focus needs to shift to one shot-one kill.
Ever heard of cold bore accuracy?
Grouping walked and/or preconditioned into steel isn't it.

How ACCURATE is the gun producing single cold bore shots at 200yds?
IMO, you shouldn't be shooting at big 600yd animals until you can pull out a gun & hit a 2" dot at 200, exactly as you would in the field. One shot, off a bipod in the dirt, etc.
For small varmints, a 1" dot at 200, and you should be able to do it over & over with an hour or two between each shot.
~10min followup shots will probably bring out the worst consistency in your gun. It does with a couple of mine. And while my worst isn't good enough, I won't use it like that with hunting shots.
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  #5  
Old 11-30-2013, 01:35 PM
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Join Date: Dec 2001
Posts: 800
Re: POI change on coldbore shot

Quote:
Originally Posted by Ultramag45 View Post
Hey guys, for the life of me I cant figure this out...I shoot a custom 338 RUM.. it is a real tackdriver....shoots well into the 1/3 moa to 600 yards...Never really pay attention to it since I shoot a fowler everytime i shoot steel...well this hunting season I was humbled...Hunted with a fouled barrel shot a buck at 588..10 inches right....No wind.. shot again and hit perfect...Got home cleaned gun went out and shot...fouled barrel...proceed to shoot a 2 inch group at 500... last week went to shoot again before another hunting trip...same fouled barrel (5 shots)...1st shot10 inches right at 500...then 4 right on top of eachother in under 2 inches....Thought it was me.. went home cleaned gun.. fouled barrel..waited an hour and shot cold bore shot again 10 inches right, and 3 dead center....Just went to colorado on deer hunt and this was wagging the back of my mind the whole time...lined a buck up at 614, and actually gave him 2 minutes left( his brisket). and hit about 4 inches back of his shoulder..killed him dead...approx 10 minutes later, just for fun.. found a volleyball size rock at 720 and pouded it twice...So what is the deal here..Cant go around shooting my gun every 10 minutes while I am hunting .shooting 225 gr accubonds with 98.5 gr of h1000 going 3175 fps....28 inch benchmark barrel...thanks and look forward to a response...hopefully Jeff ( BROZ) has an answer for me
Well your no strange to the 338 RUM guess you got the other custom sold. My deer/elk rifle I keep fouled from my last range trip just before hunting season.

I'll do some cold bore shooting after I get a load and it's just to shoot one shot and I'll use same target 4/5 range trips @ 200/300yds and I don't clean when I doing that. I'm not sure where your hunting here in Co but DOW has some rifle ranges might want to check see if one close by next time and take couple shots before opening day.

You been shooting 338RUM since joining have you had this problem with other rifles? My last build use a Mike Rock barrel haven't tried Benchmark.

Glad you got your buck here.
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  #6  
Old 11-30-2013, 02:47 PM
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Join Date: Aug 2008
Location: Forks, Wa
Posts: 138
Re: POI change on coldbore shot

No never have had this problem before...had 3 other Ultra Mags...A Defensive edge that was great... a Mcworters that I still own that is great..And reload for several others...all 1/2 moa guns...I understand making adjustments for that coldbore shot..But that much... and yeah I can shoot a 2 inch dot at 300 everytime...just strange why it is off that much...I usually clean all guns after 15- 20 shots... and send 2 foulers through, and it is ready to hunt with....But this gun coldbore is consistently off to the right everytime.. perfect for vertical...though.. after that shot, it stacks em right on top of eachother...the same with 225 and 300s...never seen that much difference before.. a couple inches maybe...even with some of my 30 cal.. not that much difference.. if there is anything I should try let me know...Gonna bug Kirby I think... Hes building me a 338 AX right now....
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  #7  
Old 11-30-2013, 09:08 PM
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Join Date: Dec 2001
Posts: 800
Re: POI change on coldbore shot

Quote:
Originally Posted by Ultramag45 View Post
No never have had this problem before...had 3 other Ultra Mags...A Defensive edge that was great... a Mcworters that I still own that is great..And reload for several others...all 1/2 moa guns...I understand making adjustments for that coldbore shot..But that much... and yeah I can shoot a 2 inch dot at 300 everytime...just strange why it is off that much...I usually clean all guns after 15- 20 shots... and send 2 foulers through, and it is ready to hunt with....But this gun coldbore is consistently off to the right everytime.. perfect for vertical...though.. after that shot, it stacks em right on top of eachother...the same with 225 and 300s...never seen that much difference before.. a couple inches maybe...even with some of my 30 cal.. not that much difference.. if there is anything I should try let me know...Gonna bug Kirby I think... Hes building me a 338 AX right now....

You should get hold of Kirby. Hard to say why it's off that much be interest to see what Kirby comes up anyway good luck.
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