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Why 7STW over 300WM?

 
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  #15  
Old 04-29-2013, 07:05 AM
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Re: Why 7STW over 300WM?

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Originally Posted by Broz View Post
My experience and yours in barrel life of the 300 win v/s the STW differ a lot. But I will offer this, for the next time you shoot a 215 Hybrid. Try H-1000 and a fed 215 in a large capacity case , not RWS brass but WW, Norma or even RP. Anyway, the shorter bearing surface of the only 215 I am aware of (Berger Hybrid O-give) actually allows me to get 30 to 50 fps more velocity than I did with 210 VLD's. At 1 gr less of H-1000 same lot powder and same brass.

How many different loads with 215 Bergers have you tested in your 300 win?

Thanks!

Jeff
I'm used to the 200 partition and sierra match or the 220 sierra match in win brass. I do not use berger. Sierra, nosler, and hornady have served my pipes pretty well. I do use some barnes when I want a lead free pill. My current 300 win is a lh browning stalker ss with a rather short mag and throat that restrict capacity a bit.
I usually use the browning for situations where the critters are running and shots won't be over 500-600 yards. I've actually gone to a 165 hornady at 3250 fps pushed with rl22 to get the mid range time of flight down. It is also the most accurate load in that pipe.
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  #16  
Old 04-29-2013, 07:15 AM
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Re: Why 7STW over 300WM?

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Originally Posted by bigngreen View Post
Actually I love all you Koolaid drinkers, keeps the internet interesting. There have been more brass options come on line since I last was around one which is a good thing, I stand corrected. The 7 STW has no advantage over any other cartridge that will run the same bullets, it's just another way of launching them, it's killing capability has far more to do with the bullet and the shooter than the case!

The local gun shop has been sitting on 7 STW brass for years due to it's popularity, I was thinking of buying it and making a 270 STW to launch some new 170gr bullet that need launched faster than my WSM.
Buy the brass and sell it here; There are a few guys here looking for brass lately. I've bought my town out already and I don't expect to see any stw brass until fall. I may reform some 375 h@h or 416 rem from my lgs; he's got a good bunch of that stuff and I think some is norma. The stw can be made from any belted full length case, unlike the 300 win, which can't be made from either the 2.5" case OR the 2.85" case. You are pretty much stuck on 300 win brass or you've got some serious case forming to do, not just necking down.
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  #17  
Old 04-29-2013, 08:32 AM
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Re: Why 7STW over 300WM?

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Originally Posted by Lefty7mmstw View Post
I'm used to the 200 partition and sierra match or the 220 sierra match in win brass. I do not use berger. Sierra, nosler, and hornady have served my pipes pretty well. I do use some barnes when I want a lead free pill. My current 300 win is a lh browning stalker ss with a rather short mag and throat that restrict capacity a bit.
I usually use the browning for situations where the critters are running and shots won't be over 500-600 yards. I've actually gone to a 165 hornady at 3250 fps pushed with rl22 to get the mid range time of flight down. It is also the most accurate load in that pipe.
Ok, Thanks! That explains why your estimate for a 215 you stated was off 150 fps or so, you haven't loaded them.

So you make running shots on deer at 500-600 yards? I take may hat off to your sir. I would have zero confidence on that shot with my shooting skills. I am not even sure I would waste my ammo to try for a coyote in those conditions. Do you dial for a shot like that and lead it, or just hold the reticle over and add a proper lead? I would think that would mean the cross hairs would be in front and above the deer?? That would be a tuff shot and how would one even practice for it? I could see where a fast bullet would be of use in this situation. But I guess I just don't need to take that kind of shot often where I hunt.

Thanks!
Jeff
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  #18  
Old 04-29-2013, 10:02 AM
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Wink Re: Why 7STW over 300WM?

Gents -

Thanks to all of you for your posts. This is great data. I must say, it still looks like the 300wm is the gun to beat. Not to mention the Brass and Bullet selection is significantly better.
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  #19  
Old 04-29-2013, 10:49 AM
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Re: Why 7STW over 300WM?

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Originally Posted by Broz View Post
Ok, Thanks! That explains why your estimate for a 215 you stated was off 150 fps or so, you haven't loaded them.

So you make running shots on deer at 500-600 yards? I take may hat off to your sir. I would have zero confidence on that shot with my shooting skills. I am not even sure I would waste my ammo to try for a coyote in those conditions. Do you dial for a shot like that and lead it, or just hold the reticle over and add a proper lead? I would think that would mean the cross hairs would be in front and above the deer?? That would be a tuff shot and how would one even practice for it? I could see where a fast bullet would be of use in this situation. But I guess I just don't need to take that kind of shot often where I hunt.

Thanks!
Jeff
My farthest kill on a moving whitetail with a 7mm was well over 600 yards with a cross wind with my 7rum. He was moving downwind and the shot was a bit down hill which helped the lead/raise a bit and I popped off at about a body and a half over the ears and two lengths and change in front. Got him at the diaphram and the top 1/4 of the body. That was the first shot in the field for that rifle; my brother called me off just as I let fly. The next morning I put up a 700 yard shot on a mule deer doe with the 7rum.
The next year I knocked off a full run antelope at 1/4 mile flat with a 30 mph + cross wind. That one took two shots to guage the lead. I had to have the damn critter's nose at the edge of the scope to hit mid body at 16x. I had two sprained shoulders from messing around with my son (jumping around on haybales with a toddler in your arms just before hunting season isn't advisable) so I wasn't going out hunting another day. It hurt to damn much to shoulder and raise the rifle.
That rifle was terribly fussy and only ate flat base bullets; I was pushing the 140 sierra pro hunter at 3500 fps with a heavy charge of rl25.
I've gone to 500 yards with my previous 7stw but haven't killed with this one yet; I really didn't trust it enough last year to let it play. I killed a spike mule deer between 500-600 yards out this year with my 500 win using 165 hornady pills. The dang thing was quartering away and the wind was horrible. It took a few shots but I got him; my boys got to see too as both of them and my wife were in the truck. The critter just happened to show up driving between spots. Previously, my last 300 win running kill was at 1/4 mile on a 4x4 mule deer buck.
I like to keep my time of flight as low as possible as I spot and stalk and never set up for extreme range (public land here in nd often has others on it). I don't usually have time to work with the scope. The critter just has to be there in the scope or the shot won't work. I set all rifles at 16x (unless they don't top out that high)in the field so I can judge range quicker.

Last edited by Lefty7mmstw; 04-29-2013 at 11:24 AM.
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  #20  
Old 04-29-2013, 11:17 AM
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Re: Why 7STW over 300WM?

Quote:
Originally Posted by Broz View Post
My experience and yours in barrel life of the 300 win v/s the STW differ a lot. But I will offer this, for the next time you shoot a 215 Hybrid. Try H-1000 and a fed 215 in a large capacity case , not RWS brass but WW, Norma or even RP. Anyway, the shorter bearing surface of the only 215 I am aware of (Berger Hybrid O-give) actually allows me to get 30 to 50 fps more velocity than I did with 210 VLD's. At 1 gr less of H-1000 same lot powder and same brass.

How many different loads with 215 Bergers have you tested in your 300 win?

Thanks!

Jeff
I used h1000 with 190 hornady bt's in my last 300 win and it did very well at just over 3000 fps with a 24" barrel. Less than 3" 1/4 mile groups off the hood of the truck.
I am looking for a bit higher bc bullet for my current 300 win but I need to keep the speed up for offhand moving kills. Would you think one of the 180ish grain offerings from berger would work well here?? I have rl22, rl25, and retumbo that I could use. I need to load to right around 3.34" as the mag isn't allowing much more than that and the throat is pretty short to boot. The mag length has kept my away from the nosler tipped offerings as the noses are to dang long.
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  #21  
Old 04-29-2013, 11:48 AM
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Re: Why 7STW over 300WM?

Quote:
Originally Posted by Lefty7mmstw View Post
I am looking for a bit higher bc bullet for my current 300 win but I need to keep the speed up for offhand moving kills. Would you think one of the 180ish grain offerings from berger would work well here?? .
Lefty, If you are making 700 yard or 1/4 mile kills on running deer, off hand, in 30 plus mile winds, just holding off with a deer almost out of your scopes field of view, then my knowledge and methods have nothing to offer you. I simply am in no way close to your league of shooting.

Thanks and good luck

Jeff
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