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H1000 & 210gr Bergers 300 WM

 
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  #1  
Old 02-01-2012, 08:11 PM
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H1000 & 210gr Bergers 300 WM

I just got back from the range after making some 210 bergers for my Remington 700P w/ 26" barrel. I used the data that Berger provided me and started my load at 72.5 (berger claims 2689fps) and went up in .5gr intervals to a max of 76.2gr (2836fps). So I loaded 3 rounds at each interval using new winchester brass, cci primers, H1000 and Berger 210s, coal 3.340. Through all the intervals I didnt see any signs of too much pressure. My question is the first group was the tightest (.4") but is 72.5gr and 2689 fps enough to get me out to 1000 yds. The problem is my gun did not llike the higher charges it consistantly opened up the groups to a final 3"(76.2gr). Should I try another powder or just stick with the 72.5gr of H-1000. I guess it just seems like a low charge and slow fps. Please give me some suggestions.
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Old 02-01-2012, 08:24 PM
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Re: H1000 & 210gr Bergers 300 WM

I have loaded for a lot of 26" 300 wins. with 210 Bergers and H-1000. Mine usually are happy about 76 or 77 gr. Did you try any dfferent seating depths? What primer are you using?

I better add I have seen some max out on pressure at 74 gr too. Depends on type of brass and rifle.

Jeff
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Old 02-01-2012, 08:36 PM
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Re: H1000 & 210gr Bergers 300 WM

The primers are CCi large magnum primers with new Winchester brass. At 75 and 76.2 gr the first 2 shots were right on top of each other then the third would be off. I did not see any signs of too much pressure no sticky bolt or flat primers at all. What would you suggest on the COAL I'm just runnin 3.340
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Old 02-01-2012, 08:42 PM
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Re: H1000 & 210gr Bergers 300 WM

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Originally Posted by Clndesl View Post
The primers are CCi large magnum primers with new Winchester brass. At 75 and 76.2 gr the first 2 shots were right on top of each other then the third would be off. I did not see any signs of too much pressure no sticky bolt or flat primers at all. What would you suggest on the COAL I'm just runnin 3.340

I would stay with the 76 gr and move the bullet out to about .020" off the lands. I have seen them shoot pretty good from .005" in the lands to .020" off. Also if you coud get ahold of some Fed 215 GM primers or even some 210's I would try a primer change too.

Another thought is you could have some barrel pressure and was getting heat by the time you got to those loads. Maybe load some more and retest making sure the barrel is cool for the 3rd shot.

Jeff
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Old 02-01-2012, 08:49 PM
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Re: H1000 & 210gr Bergers 300 WM

I will try your suggestions and find some federal primers and I need to figure out where .02 off the lands is cause I don't have the tool yet. Thanks for your imput.
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Old 02-01-2012, 08:53 PM
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Re: H1000 & 210gr Bergers 300 WM

Quote:
Originally Posted by Clndesl View Post
I will try your suggestions and find some federal primers and I need to figure out where .02 off the lands is cause I don't have the tool yet. Thanks for your imput.

Yeah, I would stick with it. I haven't see one yet that would not shoot there. But I do usually use Fed primers.

Your velocity looks right too for a 26" at 76 gr. I bet you will get it with some tweeking.

Jeff
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Old 02-02-2012, 09:59 AM
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Re: H1000 & 210gr Bergers 300 WM

first are you going to be hunting with this ammo or just puch holes in papper.if for hunting I would find the max length of my mag then load them to that length.if for punching holes I would find the lands of my rifel and load say .015-.020 off the lands.my reason for saying this is that you will find your accuracy node alot better with a length thats alot longer most of the time.you are reloading now so factory spec of 3.340 doesn't have to be your C.O.A.L. for the most part.

for me I have found just as the others that posted 74 and up works better for my rifel.note that I load for papper shooting and my loads are really long at 3.700 but thats what my rifel wants with my load.

I don't think your primer has much to do with your load.but some will say different.I really think you just need to find a better C.O.A.L. for your rifel.while you work up another load useing the ladder test.I have allways worked with a longer C.O.A.L. for the rifel of choice when testing.then after I have found a node or two I work on the length.but have found I really don't mess with the length after I have found the charge weight it likes.in most cases I may move up/down a few thou but not much from where I started from.
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