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270 Winchester and 140 grain bullets: perfection
 Moderated by: Slingshot, Rockydog, klallen, DesertMarine, -6 Page:    1  2  Next Page Last Page  
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 Posted: Sat Sep 11th, 2010 01:31 AM
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moosekiller99
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I have had extremely consistant results with the Nosler Accubond, Ballistic Tip, Hornady SST and the Interlock Boatail Spire Point in my Ruger M-77 and Browning A-Bolt with all of these bullets and the same charge of IMR 4831.  The load is maximum for both rifles and is always MOA or better.  The Accubond chronographs at 3030 fps out of my Ruger M-77 with no signs of excessive pressure.  Other than sizing the cases to the specific rifle and having different OAL's the various combinations all shoot the same.  Has anyone else found a .270 bullet/powder combination that is so repeatable?



 Posted: Sun Sep 12th, 2010 03:07 PM
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wcstacf
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Hello Moosekiller:

Congrats on your results with the 140- grains in the .270.  I am a .270 fan and just started testing 140 grain bullets myself.  I went to the range yesterday with 140-grain Accubonds on Win Brass trimmed to 2.53, Win Primer, using a COAL of 3.340 on top of IMR 4831 and H4831SC loaded in accordance to the Nosler manual. 

I have not tabulated the results but it was obvious that the minumum load for both powders gave me the best results.  They were ok and may get better with a little work or maybe changing the primer to a Federal primer. I do know that I did not get the same results as I have achieved with 130-grain Ballistic Tips.  My gun loves that bullet with 57-grains of H4831SC.

Keep us posted in any new results and good luck with the 140's. That is good to know.

 

 



 Posted: Sun Sep 12th, 2010 03:29 PM
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Rockydog
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My 270 Savage 110 loves 130 grain Hornady's over a 62 grains of Hodgdon 4831. I'm talking just the standard cup and core bullets. At 200 yards it puts 3 bullets in a group easily covered by a quarter. It acts very similarly with 130 Winchester silver tips using the same load. RD

 

CAUTION: This post discusses loads or load data that may or may not be appropriate for your gun or for the cartridge(s) and components mentioned. Due to typos, variations in guns and components, and the abilities and judgement of users of this data, neither the writer, Handloadersbench.com, nor the staff of Handloadersbench.com assume any liability for damage or injury resulting from using this information. DO NOT ATTEMPT TO DUPLICATE THE DESCRIBED LOADS without first working them up from a published safe starting level charge while watching for pressure signs. If you don't know how to do that, please don't try, for your own safety and the safety of others.








 



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 Posted: Tue Oct 26th, 2010 03:38 PM
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budlight
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moosekiller99 wrote: I have had extremely consistant results with the Nosler Accubond, Ballistic Tip, Hornady SST and the Interlock Boatail Spire Point in my Ruger M-77 and Browning A-Bolt with all of these bullets and the same charge of IMR 4831.  The load is maximum for both rifles and is always MOA or better.  The Accubond chronographs at 3030 fps out of my Ruger M-77 with no signs of excessive pressure.  Other than sizing the cases to the specific rifle and having different OAL's the various combinations all shoot the same.  Has anyone else found a .270 bullet/powder combination that is so repeatable?

I have found that Reloader 22 and IMR 7828 SC works very well in 24 inch or longer barrels.   IMR 7828 also likes mag rifle primers like CCI 250.   I spent a bunch of time bench rest shooting with a chrono set up at 20 feet to get very consistant loads.   I have a rebarrel (McGowen) 28 inch on my M-77 and it is a tack driver with careful loading and seated to .003 from the lands



 Posted: Sun Nov 14th, 2010 10:42 AM
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andrewnotts
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Could you help with recommending varget loading for 270 with 140gr sierra game king bullets



 Posted: Sun Nov 14th, 2010 12:17 PM
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budlight
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andrewnotts wrote: Could you help with recommending varget loading for 270 with 140gr sierra game king bullets
Varget is a fast burning powder and not recommended for 140 gr bullets.   But you can figure out a load if you pull up a burn rate chart and find say a close IMR or Hogdon powder.  Then look on line at their loads.   All vendor loads are way below on pressure for quality bolt action rifles



 Posted: Sun Nov 14th, 2010 12:27 PM
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andrewnotts
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Many thanks for the information



 Posted: Sun Nov 14th, 2010 12:47 PM
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budlight
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andrewnotts wrote: Many thanks for the information
http://data.hodgdon.com/cartridge_load.asp


You got my interest up.    It shows how 7828 can drive the bullet faster with slower powder.

 

 



 Posted: Wed Dec 15th, 2010 10:48 PM
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joew
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hey rockydog! I see you are using a savage 110, using the same gun and playing with some loads I made up and have a ? was using the nosler 130gr ballistic tip loads using imr 4831sc at 52 grn powder a oal of 3.175, shot them up and had a decent group, was out of that load and switched to the same bullet but had 56grn of powder and a oal of 3.195 and that bullet is about 3inches higher at the same distance, ? is does that make sense to you that that would happen with a touch more powder and a tad bit longer?



 Posted: Thu Dec 16th, 2010 03:09 AM
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Rockydog
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joew, That's not an unusual occurrence at all. I don't know what same distance was but using a 100 yard zero and estimating the velocities at 2700 FPS MV with the 52 gr load shows a drop of my Hornady manual of -15.0" at 300 yds. Using a muzzle velocity of 3000 FPS with the 56 gr of powder would have a drop of -11.4" at 300 yds. Also, shift in point of impact is not all about bullet speed but can also be influenced by barrel harmonics. Barrels whip back and forth and up and down due to the forces of recoil and the bullet moving down the barrel. Depending upon where the barrel whip is in it's cycle when the bullet exits, POI can change drastically. Moving up, moving down, halting briefly at the bottom or top of the swing, all have an effect on the POI. That's why shooting ladder groups is an effective way of narrowing down the best loads for a particular powder, bullet, primer and case combination. I've had POI change by a couple of inches in any direction just by changing brands of cases. Probably due to the internal case volumes changing chamber pressures. RD



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 Posted: Fri Dec 17th, 2010 02:37 AM
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klallen
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i think the 130 gr. accubond in the perfect bullet for the .270 and my hunting needs (deer). darn .270 is still one of my least favorite cartrdiges that i own.  my .280ai handles the 140 gr. accubond's better then the .270 can. so if i feel a heavier bullet is needed, i'd switch rifles rather then develop something for the .270 in that weight class.

k



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 Posted: Sat Dec 18th, 2010 02:42 PM
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joew
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was shooting 100yds and that is what I was the distance I was zeroed at as well, thanks Rockydog



 Posted: Thu Dec 23rd, 2010 08:20 AM
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magnum308
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My standard load for the .270 Win is Hornady 140gr BTSP interlocks. I used this recently on a Tahr and Chamois hunt in the south island of New Zealand. At a chromographed 3,000 fps this load has a ton of ewnergy at 200 yards.



Chamois take at 4,000 feet and a range of 200 yards. Rifle is a Winchester pre 64 Model 70 featherweight.

Merry Christmas,
Magnum  

Last edited on Thu Dec 23rd, 2010 08:23 AM by magnum308



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 Posted: Fri Dec 24th, 2010 01:19 AM
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Rockydog
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Magnum, Great photo! Looks like one tough hunt. How cold was it? RD 

My apologies for a shameless hijack but how often does somebody post on here about Tahr and Chamois?



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 Posted: Wed Jan 19th, 2011 08:23 AM
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Big Jake Duke
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60 gr H4831 has been my standby. It is 3000 fps with a 22" barrel, with a 26" it is 3200 fps. Chronographed and used for 29 years with Hornady 140gr BTSP Sierra 140 gr Game King, and my favorite the Nosler 140 ge BT.

I am currently revamping this old load with imr 7828 since I do have a 26" barrel. I like what I see as 3225 fps but I haven't finalized the most accurate version yet.

Last edited on Wed Jan 19th, 2011 08:24 AM by Big Jake Duke



 Posted: Wed Jan 19th, 2011 04:56 PM
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DesertMarine
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From what I am reading here, looks like I have to try 4831.  I like 140 gr Interlocks, spire points and have been using IMR4350 in a Sako, but haven't gotten what I want out of the rifle. 



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 Posted: Fri Jan 21st, 2011 04:04 PM
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Paul B
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My experience with the .270 is very long and extremly thin. :sad: I got my first .270 in the summer of 1973, an FN Mauser sporter with a stock so ugly, it would abort a lady crocodile, to quote the late jack O'Connor. :lol:I shot a deer with it that year and a couple of coyotes as well.The 130 gr. bullet, I forget which did more meat damage than I care of and what that load did to those coyotes was absolutely obscene. :shameon:

I talked the the father of a friend who was a .270 fan from the get go and he said all he used was the 150 gr. bullets so I bought some, worked up a goodly stiff load with H-4831 and shot two more deer with the cartridge in the next two years. I didn't shoot that gun again until a few years ago when I found out I still had a box of those 150 gr. bullets loaded up, so took the gun to the range and had fun. That rifle is so damned accurate that it's a sin. groups run from .50" to .75" as long as I do my part. A few years ago, another friend who has gone to the happy hunting grounds wanted to sell his 1951 commercial FN mauser, another .270 as he needed money for doctor bills so I took it off his hands. That one is also dead nuts accurate. Nothing I've run through it has gone over one inch.

Now I happen to collect Ruger #1 rifles and when one came up in .270, I bought it. Of the 4 rifles in .270 I have, it is the least accurate at 1.25" which is about the best it will do. :confused::sad:

A couple of years ago, while cruising a gun show, I saw what looked like a Winchester M70 Featherweight, but with a synthetic stock. The price was right and it had a decent scope on it so I figured what the hell and took it home. I found out it was not a Featherweight but an XTR with 24" barrel.

One the way home I stopped at Walmart and bought a box of Winchester 150 gr. Power Point ammo to try and to get case head and pressure ring measurements prior to working up a load. First two shot at 25 yards left one hole slightly larger than caliber insuring that I would be on the paper at 100 yards. Then, I settled down and carefull shot 3 rounds. The group was right at a half inch. I let the gun cool down for a long time while I shot something else and then proceeded to try a 5 shot group. The 5 shots went into .80". Seems like I just cannot find an inaccurate .270.

I took that M70 XTR on my antelope hunt in 2009 loaded with the 150 gr. Sierra Game King at 2930 FPS. It dropped my speed goat at 75 yards with very little meat damage. I'm thinking that I haven't been giving the .270 the respect it deserves. The wife and I are considering doing another antelope hunt this year. She'll probably use my .257 Robt. and I'll take one of the .270s. BTW, after 42 years of accompanying me on hunts, this will be the first time she'll try and take an animal. :thumbs: Needless to say, she gets first crack at the animal.:cool::cool::cool:

Paul B.



 Posted: Fri Jan 21st, 2011 04:29 PM
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DesertMarine
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Paul, glad to see someone else likes the #1's.  In the 80's, I was looking for deer rifle, found a Ruger #1 in 270, bicentenial model.  Like yours, the least accurate but still a favorite rifle.  Shoot my Sako in 270 more but still like the #1.



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 Posted: Fri Jan 21st, 2011 07:15 PM
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Paul B
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DM. I found my .270 at a gun show for $250. The guy was honest and said it did not shoot worth a darm and he was glad to get rid of it. He'd done some tinkering including free floating the barrel. I took a piece of an old credit card and cut it to fit under the barrel at the tip of the forend and that brought it down from an almost 3" gun to the 1.25" average I get now. At least I got some improvent and it was enough to make the gun usable. I have 21 Ruger #1s and only two were bought brand new. All the others have been second hand guns. Some have been tack drivers and sosme? Well to be kind they do go bang. Actually they're not all that bad and most do shoot better than Ruger's accuracy standard which is two inch groups at 50 yards. One would think that as much as those guns cost today, and even when they first came out, that they would shoot a lot better than that.:confused::shameon::shameon::shameon:

My 7x57 shot so bad I sent it back to Ruger, A chamber cast told me the throat was way out od spec. When, after 7 months I finally got the gun back, all Ruger said was, The gn is accurate." I had another chamber cast made and it appears they did put a new barrel on the gun. Why they didn't just say so is beyond me. :confused: From the looks of the metal on the receiver and the wood, I'm thinking they reblued everything and refinished the wood as it looks like a brand new gun. Guess I can't complain about the wait as what I got back wqs definitely a winner.

Paul B.



 Posted: Sat Jan 22nd, 2011 03:51 PM
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DesertMarine
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I have been looking at ways to make mine shoot better but since it is a bicentenial model, hesitate to mess with it.  So I just enjoy it.



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