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180 grain Scirocco II's & .300 Winchester Magnum - Perplexed

 
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  #8  
Old 05-17-2006, 01:48 PM
POP POP is offline
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Re: 180 grain Scirocco II\'s & .300 Winchester Magnum - Perplexed

[ QUOTE ]
So,

Given the fact that something changed...what do you think the chances are that they will shoot like the old load used to with the same components, loaded the same way with the exception of the powder charge (need to drop it some to get out of the high pressure zone)?

[/ QUOTE ]

300 Actually your rifle is the only one who can answer that. Sorry bud. [img]/ubbthreads/images/graemlins/confused.gif[/img]
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Old 05-17-2006, 02:50 PM
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Re: 180 grain Scirocco II\'s & .300 Winchester Magnum - Perplexed

Unfortunately I already knew that answer. I was just hoping someone could give me false hope [img]/ubbthreads/images/graemlins/wink.gif[/img]

I am goint to try that methodology and if it doesn't work I am going to: 1) Be pissed at Swift for screwing with things after blowing a lot of powder and bullets to get the originals to work, and 2)Not buy any more Swift bullets because 3) I have a good load with the 200 grain Nosler Accubond for that rifle.

I guess what I am saying is I am going to load up 9 cartridges .5 grains below the old load, 9 more .5 grains below that and 9 more .5 grains below that. I will shoot 1 of each at three seperate targets until I have a three shot group in each target. If one or more of the groups show promise I will keep going, if not I'm done and the remainder can crack rocks [img]/ubbthreads/images/graemlins/tongue.gif[/img]
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Old 05-17-2006, 09:13 PM
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Re: 180 grain Scirocco II\'s & .300 Winchester Magnum - Perplexed

If you've got a solid load with a 200gr accubond there's your standard.
If you can beat it great, if not nothing lost because you still got trigger time.

Let us know what happens.

DK
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  #11  
Old 05-23-2006, 02:50 PM
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Re: 180 grain Scirocco II\'s & .300 Winchester Magnum - Perplexed

Here is the range report:

Loaded up 27 rounds in the following manner:
Once fired, neck sized W-W Brass
Federal 215M Primers
IMR 4831 - 9 @ 73.0 grains 9 @ 73.5 grains @ 9 @ 74.0 grains
Swift Scirocco II - 180 grains.

All measurements (i.e. Compartor, C.O.L.)where the same as the load configured with the original Scirocco.

Barrel had 13 shots through it prior to this session...same powder, same bullet.

First group of 3. 73.0 grains. Result - 2.5" group @ 100 yrds.

Second group of 3. 73.5 grains. Result - 2.75" group @ 100 yrds.

Third group of 3. 74.0 grains. Result - 1.5" group, vertically strung @ 100 yrds.

Decided to pursue the last group to see if it was a fluke...it was. Fired two of the three shots set aside for the group and the two were 3.5" apart.

Came home, pulled the remainder and I will give the remainder to my father-in-law as he thinks they are the greatest thing since sliced bread as all of his groups are one holers [img]/ubbthreads/images/graemlins/shocked.gif[/img] Oh, wait a minute. One shot does not a group make [img]/ubbthreads/images/graemlins/wink.gif[/img]

Needless to say, I am done with Scirocco's.
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Old 05-23-2006, 07:45 PM
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Re: 180 grain Scirocco II\'s & .300 Winchester Magnum - Perplexed

Bright side to all this.....

1. You got to shoot more.
2. You still have a kick arse load with the Accubonds.
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  #13  
Old 05-24-2006, 08:31 AM
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Re: 180 grain Scirocco II\'s & .300 Winchester Magnum - Perplexed

Pop,

Agreed!

I am going to try the 180 grain version of the Accubond now. [img]/ubbthreads/images/graemlins/cool.gif[/img]
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  #14  
Old 07-29-2006, 10:31 AM
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Re: 180 grain Scirocco II\'s & .300 Winchester Magnum - Perplexed

I haven't tried the SCIIs but have shot a lot of the SCIs. While it would be true joy to just tweek your load of IMR4831, such expectations would be optimistic at best. In this game, any change can put you pretty close to square 1. In most magnums, achieving a combination of high velocity and sub 1" accuracy is a delicate quest. On thought might be to change your powder to a slower one. You certainly have enough capacity in the 300 Win to go that route. In the new WSMs it is not often available due to the much smaller case capacity. If you ever decide to give it a go in the future, I'd suggest trying RL-22 or RL-25. It's a sad day when the recipe for an accurate load is lost through no fault of our own. More than likely, this won't be the first time.
re5513
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