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Masters of Reloading......my 300WM is not shooting good.

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  #15  
Unread 05-24-2009, 06:45 AM
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Re: Masters of Reloading......my 300WM is not shooting good.

Hay I dont know near as much as a few of the guys who posted but I did read through everyones post. no one asked you how long you where waiting between your shots? I work my loads up at 200 yds using the ladder meathod and I fire a round every 10 min it gets kind of boring so I bring another gun to pass the time.
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  #16  
Unread 05-24-2009, 07:55 AM
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Re: Masters of Reloading......my 300WM is not shooting good.

AtownBcat,
Those BR2's are a favorite of mine. Others on here claim good results from using Federal primers. I tried them years ago, and never had any luck with them and therefore haven't bought or used any in 20 years. I'm sure I could make 'em shoot if that's all I had. Another favorite of mine is the Remington 9.5 & 9.5M.
When I first got my 700P in 7mmRM I just knew I was going to shoot the 168gn VLD Berger in to itsy bitsy groups. NOT! I have tried about a dozen different powders, a half dozen primer types and every bullet depth imaginable. I even considered turning the bullet around! Dang rifle! It does not like 168gn Bergers. I have shot a whole box trying to find a good load. It will shoot the 150gn Ballistic Tip and 140gn TSX in to sub 1/2" groups most anytime I crank it up. It's not what I had envisioned for that rifle but it is what it is. I don't even like the thought of buying a box of 160gn AccuBonds for fear they won't group. Bottom line: sometimes a rifle doesn't like a particular bullet style or weight range.
For seasoning the barrel you could probably get as many different techniques and answers as you will for pet loads or reloading techniques. For a new rifle I clean after every shot for the first 10 and then after every 3 shots for the next 20. After that, usually about every 10-15 shots, depending on the bullet type or how much accuracy falls off. It's kind of a instinctive thing with me. As for solvents; I use Montana Extreme bore cleaner and copper killer. They are fast and effective. After removing carbon/copper I run a patch with a misture of Kriol and Marvel Mystery oil down the tube. I use only Nylon brushes (2 sizes smaller than the caliber I'm cleaning) with patch wrapped around it. This method works for me. JohnnyK.
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  #17  
Unread 05-24-2009, 08:04 AM
WRG WRG is offline
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Re: Masters of Reloading......my 300WM is not shooting good.

ICANHITHIMMAN makes a good point the barrel needs to cool between shots.

One thing you might want to do is make absolute sure your scope is not moving. Looking again at your targets I think I see that. Only because the groups seem to move from left to right and not verticaly. As you try different charges the velocity changes which normaly makes the point of impact change on a vertical scale not the horizontal plain.

Just one more thing to consider.


WRG
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  #18  
Unread 05-24-2009, 10:43 AM
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Re: Masters of Reloading......my 300WM is not shooting good.

I waited 2-3 minutes between shots and it was about 85 out that day.

I snuck another picture in on you guys back on page 2 of this thread...please look back at it..it is a group(5 shots...looks like 4) but there is a horizontal movement to it.....what does that kind of movement tell you about what the load needs.....i feel like im really close on this one.
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  #19  
Unread 05-24-2009, 10:49 AM
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Re: Masters of Reloading......my 300WM is not shooting good.

You need to wait at least 10 min between shoots in that kind of heat in my opnion. I have a heat gun I use for welding that I sometimes use when I am real impataint. I keep my ammo out of the sun as well.

I would let the barrel cool a bit longer and re shoot using the advice you got from the other guys.
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  #20  
Unread 05-24-2009, 10:51 AM
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Re: Masters of Reloading......my 300WM is not shooting good.

Quote:
Originally Posted by AtownBcat View Post
I waited 2-3 minutes between shots and it was about 85 out that day.

I snuck another picture in on you guys back on page 2 of this thread...please look back at it..it is a group(5 shots...looks like 4) but there is a horizontal movement to it.....what does that kind of movement tell you about what the load needs.....i feel like im really close on this one.

Might be close there. Horizontal stringing can be several things. When I shoot the group, I always blame my hold. With a lightweight rifle (9lbs and less) with significant recoil, the amount of shoulder pressure and the shoulder position can cause horizontal stringing.

I'd reshoot that load 3-4 times and see what the groups look like. Shoot them over a chrony if possible. If the groups are similar, play with seating depth a little.

AJ
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  #21  
Unread 05-24-2009, 11:13 AM
WRG WRG is offline
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Re: Masters of Reloading......my 300WM is not shooting good.

I think he stated he was shooting from a lead sled but even still one really needs to concentrate on sqeezing the trigger and not pulling. I know you said you were trying to eliminate the human factor but even on a lead sled your shot can pull if your anticipating the recoil. So the question is are the shoots moving left to right or right to left and are you left handed or right handed? This is a process of elimination trying to debunk a stringing problem in order to focus on what the real problem is.

If it's not you or the scope I would work the load up from min to max. Just shooting a publizied load will alomost always have a different result!

WRG
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Last edited by WRG; 05-24-2009 at 11:32 AM.
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