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Dom
Moderator



Germany
2030 Posts

Posted - Jul 21 2012 :  14:35:15  Show Profile Send Dom a Private Message  Reply with Quote
I would keep working to get a load for the 200gr Accubond and the 220gr A Frame. I trust both of those bullets. Nice pics.

But IMR4350, you keep avoiding that 9,3x62 Got another one for you to do some thinking on, the 8,5x63 Reb . . .
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 21 2012 :  22:55:02  Show Profile Send IMR4350 a Private Message  Reply with Quote
quote:
Originally posted by Dom

I would keep working to get a load for the 200gr Accubond and the 220gr A Frame. I trust both of those bullets. Nice pics.

But IMR4350, you keep avoiding that 9,3x62 Got another one for you to do some thinking on, the 8,5x63 Reb . . .




I hear you

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 23 2012 :  10:47:44  Show Profile Send IMR4350 a Private Message  Reply with Quote
Well, today is revealing indeed all accept me changing my OAL and opening up my group to over twice the size it was Friday. You know, sometimes I need to leave somethings a lone. Now that said, here are my velocities from two different groups this morning and they are not over max (you can see by looking at my brass). I am going to adjust my OAL back to were it was 3.600" and continue to work up one tenth of a grain at a time till I get near or at max for my rifle.

Here are pictures of my chronograph readings, brass fired for highest velocity average and my group that needs the OAL adjusted back to where it was. This is very significant, considering I have a 24" barrel, and a greater cross section of my 200gr bullet than a 200gr bullet out of a 300Rum.








A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 24 2012 :  11:14:39  Show Profile Send IMR4350 a Private Message  Reply with Quote
Getting there with the Accubond bullets. Different lot of RL-25 and things looking up. Had Extreme spread of 30, Deviation of 11 and average velocity of 3133fps. Will be taking a break for a while before doing anymore work with my 8mm Rem Mag, but very pleased with where it is going.





first three shots then I was not paying attention shot the other two in a different target right above this one.

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS

Edited by - IMR4350 on Jul 24 2012 11:15:10
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bobnob
Senior Member



Australia
371 Posts

Posted - Jul 28 2012 :  00:21:31  Show Profile Send bobnob a Private Message  Reply with Quote
I reckon that thing would kill just about anything.
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 28 2012 :  15:32:28  Show Profile Send IMR4350 a Private Message  Reply with Quote
Yes, I am ready for part two of my load work using four different groups, two different powders and two different bullets for a total of 20 rounds to be fired at the range Monday morning.


First: a five shot group using Sierra 220gr with Magnum and a five shot group using Nosler 20gr Accubond with IMR7828

Second: a five shot group using Sierra 220gr with IMR7828 and a five shot group using Nosler 200gr Accubond with Magnum

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 28 2012 :  15:33:11  Show Profile Send IMR4350 a Private Message  Reply with Quote
quote:
Originally posted by bobnob

I reckon that thing would kill just about anything.



Yes, but it would be dependent on bullet choice.

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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bobnob
Senior Member



Australia
371 Posts

Posted - Jul 28 2012 :  16:53:15  Show Profile Send bobnob a Private Message  Reply with Quote
quote:
Originally posted by IMR4350

quote:
Originally posted by bobnob

I reckon that thing would kill just about anything.



Yes, but it would be dependent on bullet choice.



For sure, but holy krapp, what a brutal piece of work. It makes everything from the 7mm magnums through to the 338 Win Mag look soft.

This has been a great thread, keep it going.
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 28 2012 :  20:11:49  Show Profile Send IMR4350 a Private Message  Reply with Quote
I am also waiting for a box of 50 Barnes 250gr originals that was shipped today from Alaska finally. And also some 250gr Hawk bullets coming with the intent of trying later on the Woodliegh Weldcore 250gr.

It will be interesting to see how it all turns out, but really looking forward to trying it this fall with a round from all this load work and that will be fun indeed.

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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FIXNMY7MM
Junior Member



USA
49 Posts

Posted - Jul 29 2012 :  21:52:46  Show Profile Send FIXNMY7MM a Private Message  Reply with Quote
have you thought about anything lighter, like the 180 grain Nosler Btip or a 160 grain Barnes TTSX?
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 29 2012 :  22:28:14  Show Profile Send IMR4350 a Private Message  Reply with Quote
quote:
Originally posted by FIXNMY7MM

have you thought about anything lighter, like the 180 grain Nosler Btip or a 160 grain Barnes TTSX?



I have thought about he 160gr TTSX and the 180gr TSX but the 180gr Ballistic tip at the velocities I would be pushing that bullet would act like a little grenade and I don't think it would stand up at all. I really don't want to go the BT route. After I test the bullets I want from 200gr to 250gr I might try the lighter bullets but that is still an open idea with me at the moment.

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Jul 30 2012 :  11:11:48  Show Profile Send IMR4350 a Private Message  Reply with Quote
Today was an interesting morning but you talk about hot and humid. Once again to remind everyone, this is an out of the box rifle with no glass bedding or pillar bedding and this rifle uses a pressure point up close to the end of the for end. No, I do not have any intention of changing it at the moment. But today was a very good day of discovery. First, 200gr Accubonds give me great velocities but the accuracy is very poor. I have tried now different loads with RL-25, RL-22, MRP, Magnum and IMR7828 and the groups are embarrassing to say the least. My rifle simply does not like them. I have 100 200gr Accubonds left and will trade them for some 200gr Partitions if someone is willing to do so, and if you are willing please pm me about trading.

Magnum powder preformed well, my barrel did not get as hot to the touch as with the other powders and accuracy was fair to good but average velocities were 2951fps with the 220gr and that was disappointing. Now IMR7828 did very well in velocity with the 220gr SBT and accuracy was good and this was with one grain under book max. I am very please with this powder and the Sierra SBT. I will be soon testing 250gr bullets and also some 200gr Barnes TSX).


220gr SBT, 83.0grs IMR7828, Rem brass, Rem 9 1/2M primers, 3016fps, OAL 3.600" .964 minus first round which was first round out of a clean barrel. After ten shoots this group should tighten up a little more once the barrel is fouled good.




A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS

Edited by - IMR4350 on Jul 31 2012 12:01:21
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Aug 02 2012 :  14:06:57  Show Profile Send IMR4350 a Private Message  Reply with Quote
Man, this 250gr Barnes orginial in 8mm sure makes the Sierra 220gr SBT look anemic. :shock: Can't wait to work with this bullet, but that will be when the weather get just a little cooler. :mrgreen:


What a cool looking beast and if I can get around 2800fps (hopfully) WOW!

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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bobnob
Senior Member



Australia
371 Posts

Posted - Aug 03 2012 :  04:54:42  Show Profile Send bobnob a Private Message  Reply with Quote
Great photos by the way.
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IMR4350
Advanced Member



USA
1553 Posts

Posted - Aug 03 2012 :  07:20:07  Show Profile Send IMR4350 a Private Message  Reply with Quote
Thanks, glad you like them.

A GUN WRITER NEEDS:

THE MIND OF A SCHOLAR
THE HEART OF A CHILD
THE HIDE OF A RHINOCEROS
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