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Campfire 'Bwana
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Campfire 'Bwana
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Exactly, deer aren't that small.
Make a target that's a big + symbol with the bars scaled to fit your reticle at 300 yards. Use a level when you hang the target too, that'll let you know if you're canting.
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Assuming 2700fps with both, using a +2"@100 zero, which is flatter out at 400yds...the Woodleigh 160 or the Nosler 175PT? 7x57 of course.
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Campfire 'Bwana
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Campfire 'Bwana
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I loaded 20 up last night. I'll shoot them on Saturday morning and see what we come up with. I loaded 10 with 140gr NPT. 5 with 47 gr of IMR 4350 and 5 with 48 gr of IMR 4350. Loaded in Rem brass with Win. LR primers (hope they fire  ), to a COL of 3.063. (Nosler website was 3.065) Then I used the same powder charges with 139gr Hornady IL. Same brass and primer as well.
Camp is where you make it.
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Joined: Feb 2004
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Campfire 'Bwana
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Campfire 'Bwana
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I have seen a lot of people stating they've put more than 50gr of IMR 4350 for this round. The Nosler book max load is 49gr of IMR 4350.
I put 49gr in the case to start and it came about 1/2 way up the case neck. So, I dumped it and started over. I checked my scale, and did it again....same results.
How are folks getting 50+ grains in the case?
Camp is where you make it.
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Campfire 'Bwana
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Campfire 'Bwana
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Swirl pour and/or drop tube.
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As MM said, drop tube. I use one those fill tubes for sand bags that works well. I have notes for 52g. Mine has a touch of throat, though
Did you happen to measure the bullet seating, Tom?
Defend the Constitution
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Campfire 'Bwana
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Campfire 'Bwana
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My drop tube is an old BIC pen with the guts pulled out.
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Good idear, no waiting on delivery...
How do you funnel it in to BIC?
Defend the Constitution
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Campfire 'Bwana
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Campfire 'Bwana
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My old green RCBS funnel goes on top.
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Defend the Constitution
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Campfire 'Bwana
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As MM said, drop tube. I use one those fill tubes for sand bags that works well. I have notes for 52g. Mine has a touch of throat, though
Did you happen to measure the bullet seating, Tom? No, but I can. I have notes from my case trim length and the COAL.
Camp is where you make it.
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Joined: Feb 2004
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Campfire 'Bwana
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Campfire 'Bwana
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My old green RCBS funnel goes on top. That's what mine does.
Camp is where you make it.
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Joined: Feb 2004
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Campfire 'Bwana
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Campfire 'Bwana
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And I'm not saying I need to put that much in there. I was just curious why I couldn't even get book max in the casing.
Camp is where you make it.
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Campfire 'Bwana
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For several small reasons I've mostly gotten away from loads that require powder compression. My drop tube doesn't get nearly as much action now.
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Campfire 'Bwana
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Campfire 'Bwana
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exactly. I can shoot one of the 3, 30-06's we have if I need that much more. I just found it odd. I don't need to be doing tricks to get powder in the casings. 
Camp is where you make it.
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In my handloading history there is powder compression, and then was powder Compression...when the OAL grows in length sitting in the tray, it may be time to reconsider...
As you probably know, 7x57 throats can be all over the board. Throat/length & bullet seating certainly have an impact on pressure outcomes.
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Campfire 'Bwana
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And I'm not saying I need to put that much in there. I was just curious why I couldn't even get book max in the casing. RP brass and 48 grs of H-4350 is a perfect fit with a 175 NPT or Speer Grand Slam with a c.o.a.l. of 3.100"
Trump Won!
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Yeah, the 160 TSX develops more pressure than some other bullets, despite the grooves in the shank. I've used 46.0 grains of H4350 in my 21" barreled 7x57 for years with various 156-160 grain bullets, and never had a problem, but the 160 TSX will get touchy with that powder charge in warm weather. (Yeah, H4350 is an Extreme powder, but even those still develop higher pressures in temperatures much above 70, though not to the extent of "standard" powders.)
Loading the 7x57 isn't like most other rounds, due to the varying throat dimensions of different barrels. My present rifle is a custom, chambered with a reamer with a short throat. It will still chamber and shoot any factory ammo I've tried, but doesn't require as much powder to reach the same velocity levels as some of the dozen other 7x57've I've owned, and pressures would definitely be too high with some of those loads.
Plus, as somebody already mentioned, the whole point of the 7x57 is a relatively mild-recoiling rifle that will still neatly kill big game. Believe it or not, a 140 at 2800 or a 160 at 2650 will do that, even on very big animals. I haven't done a Bell and shot elephants with mine, but have used it on good-sized Canadian moose with no problems, and also on African springbok (a little smaller than pronghorns) at just under 400 yards, both with 160's at 2650. Have killed a lot of other game with my other 7x57's out to 400 with 140's at 2850 or so.
If you want more velocity from a 7mm, buy a .280 or .280 AI or some sort of 7mm magnum, instead of pushing a 7x57 hard. It works just fine at moderate velocities, which is why it's still seen in hunting camps 121 years after it first appeared. I've never grasped why shooters who want magnum velocities from a standard cartridge. Any thoughts to share on this? The three responses above are the most pertinent presented. I will point to another J Barness article where he touted 2700 as the magic muzzle velocity regarding bullet performance as well as providing reasonable trajectory. I think everyone trying to squeeze an extra 100 fps out of a hunting rifle should read it. The real lesson of the article was his pictorial comparison of the 308 loaded to approx 2700 fps to a 300 mag at longer ranges . The trajectory drop delta was not near what many would expect and imho really exposes the folly of pushing the pressure envelope trying to get an additional 100 fps out of an already adequate cartridge.
Last edited by bangeye; 09/02/17.
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The 7x57 will propel a 140 grain bullet at 2900fps in a modern action.
It would be quite adventurous to consider many animals commonly hunted today, that that combination would be unsuited for.
When truth is ignored, it does not change an untruth from remaining a lie.
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Stick a 140-gr Partition in one and I doubt there'd be much in the lower 48 that couldn't be handled.
"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown
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