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1st loads using RE17 in my 270Win |
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RONK
Optics Master Extraordinaire Joined: April/05/2007 Location: United States Status: Offline Points: 3199 |
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Helo's got a good point there which I neglected to mention- that a Chrony is an important tool, but it cannot take the place of careful observation of all the pressure signs you need to watch for!
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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I agree that the Chrony won't tell the whole story. I am being carefull for a number of reasons. I read an artical that showed just changing primers between CCI 200, Winchester LR and Ferderal 210s could cause a significant difference in internal pressure.
All the load datas I have seen for the RE17 in 270Win have been using Federal primers.
Other pressure data for differnt loads seem to indicate that changing to CCI 200 primers increase internal pressures and using magnum, primer makes it even worse. I am after finding the load that performs the best in my gun. Not the hottest load I can safely fire.
I'll do the rest with Kentuckey windage the old fashion way!
On that note, let me ask again, what are all the high pressure signs I should be looking for?
I have seen no signs of primer flattening, no distortion of the casings. The primers don't seem to be any harder or easier to seat on reloading. I have noticed that my winchester brass pockets are more snug than my remington brass but they have always been that way. I which from Lee's auto loader to the hand primer per Rifle looney's suggestion so I could better feel the primers seating.
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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rifle looney
Optics Master Joined: November/21/2008 Status: Offline Points: 2553 |
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If none of that nor sticky or hard bolt lift you are still good.
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300S&W
Optics God Joined: January/27/2008 Location: Burlington,WV Status: Offline Points: 10592 |
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Edited by 300S&W - February/15/2009 at 20:26 |
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helo18
Optics Jedi Knight Joined: December/02/2006 Location: Montana Status: Offline Points: 5620 |
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Bud,
I used to be the type that always thought faster was better. I will still push it as fast as I can without pressure signs, and loss of accuracy. With my 270, shooting 140 gr rounds, it shot better at faster velocities (smaller groups). With 150 gr, I had to back off to get good groups. Then I moved and no longer have a loading bench (which I am starting to plan out) and have not been able to play like I used to do. If you like you loads where they are, and feel no need to go up, then stay where you are. I will see if I can get ahold of some RL-17 and do some loading off my own with the 130 gr Innerbonds. Keep us posted as to how your new batch shoots. |
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To be prepared for War is one of the most effectual means of preserving peace.
GEORGE WASHINGTON |
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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Well quit stalling Andy, Get that bench set-up! I am sure there are times when you can't be buzzing the countryside in the eggbeater. God you must get to enjoy some truely Awesome scenery it that thing! Shooting, hunting and flying, oh and the occasional trout stream ...now that's lovin life!
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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Steelbenz
Optics Jedi Knight ROLL TIDE ROLL Joined: January/03/2006 Location: Heart of Dixie Status: Offline Points: 5153 |
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I've noticed with my .308 after about 2775 fps with 168s the groups tend to open back up. So I think your right faster is not always better.
Edited by Steelbenz - February/15/2009 at 21:22 |
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"Don't argue with a fool! From a distance you can't really tell who's who!"
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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geezer
Optics Apprentice Joined: October/22/2008 Location: Georgia Status: Offline Points: 133 |
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Bud,
One more variable to play with is seating depth. When you get your powder charge where you want it, you might close the group up some more by working with the seating depth. I have had ver ygood results by moving in or out as little as 10 thousandths.
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I would give you my two cents worth, but then you would probably have to give half to the gov't and what good is one penny
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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Good point geeze, right now I have the die set to seat Nosler ballistic tips 0.015" off the lands. I am willing to bet that the interbonds are probably a little farther off due to the difference in ogive. Once I shoot the reloads I loaded yesterday, I'll play with the seating depth. it would be interesting to do a 4 corner study with various depths and loads and see how they plot out. I would be willing to venture that there is a optimal load for each depth. I may run out of bullest again at this rate. LOL Edited by budperm - February/16/2009 at 09:03 |
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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BeltFed
Optics Retard Joined: February/12/2008 Location: Ky Status: Offline Points: 22291 |
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Bud, you asked about preassure signs. I'm sure RONK can expand on this, but some of them to watch for are: flattened and/or cratered primers, stiff or hard to lift bolt. There are more, but one thing I like to do is measure the casehead at the web. I measure the casehead after full length sizing. After firing I measure the casehead again, if the casehead increases .001-.002 then the load is probably ok. Anything over .002 is getting into high preassure. I'm one of those conservative folks, so I like to stop when the load goes from .001 to .002. This keeps me in the mid-range of the loading data for the most part, but I still got my face and my rifle (knock on wood).
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Life's concerns should be about the 120lb pack your trying to get to the top of the mountain, and not the rock in your boot.
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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Lynn,
Thanks for the info and tips. We are on the same page as far as safety goes on guns or anything that is held that close to your face. As long as they group well, I am happy the rest is windage and knowing your limits.
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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pyro6999
Optics Retard OT TITAN Joined: December/22/2006 Location: North Dakota Status: Offline Points: 22034 |
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i would recommend you try using sierra bullets
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They call me "Boots"
375H&H Mag: Yeah, it kills stuff "extra dead" 343 we will never forget God Bless Chris Ledoux "good ride cowboy" |
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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Haven't really researched Sierra bullets... What's so special about them?
I originally set my sights on Hornady SSTs because I wanted a bullet that would perform well at the range and hunting. SSTs with their poly ballistic tip and boat tail seem to be just the ticket and at $25 per 100 reasonible. I started with Nosler BTs simply because they were available an a close copy of the SSTs ballistically.
Both Grafs and competitor just restocked 130gr ssts in 277
Edited by budperm - February/18/2009 at 11:48 |
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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pyro6999
Optics Retard OT TITAN Joined: December/22/2006 Location: North Dakota Status: Offline Points: 22034 |
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ask trigger about his recent success with sierra, ive been using them for years, they have to be the most accurate bullets you can buy for there price, and i havent ever had a sierra fail me.
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They call me "Boots"
375H&H Mag: Yeah, it kills stuff "extra dead" 343 we will never forget God Bless Chris Ledoux "good ride cowboy" |
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RONK
Optics Master Extraordinaire Joined: April/05/2007 Location: United States Status: Offline Points: 3199 |
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The pressure warning signs I watch out for are these:
Unusually sharp recoil or muzzle blast.
A fall-off in accuracy.
Difficult bolt lift/extraction.
Primers are flattened, sometimes out to the edges of the primer pocket.
Primers are cratered; this is a little difficult to describe. It's almost as if the primer started to ooze itself around the exposed firing pin. It may show up as a tiny burr around the firing pin impression on the fired primer. This can be exascerbated by a worn firing pin or an oversized firing pin hole in the bolt face.
Pierced primers.
A shiny spot on the head of the fired case head, which upon inspection corresponds to the ejector slot or hole in the bolt face, (depending on the rifle).
This is caused by high pressure pushing the cartride case brass so far into the bolt face that a small amount is actually sheared off when the bolt is rotated by lifting the bolt handle, the case itself still stuck to the chamber walls until the bolt is rotated further. There may be tiny brass shavings in the action and/or in the ejector slot of the bolt when this occurs.
Loose primers. This is usually evident in the priming process during the next loading. This is caused by the case head expansion mentioned by Belt Fed.
I usually don't measure for that, but it is certainly a very good idea, as long as you know what your "before" measurement is to compare it to the "after"..
Rifle turns to shrapnel upon firing. This is a definite warning sign!
I'm sure there are others, but those are what I watch for. Edited by RONK - February/18/2009 at 20:31 |
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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Thanks guys. I learned some new things to check for...Glad I asked.
The only stupid question is teh unasked one!
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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trigger29
Optics Master Extraordinaire X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ? Joined: September/29/2007 Location: South Dakota Status: Offline Points: 4353 |
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"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." |
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RONK
Optics Master Extraordinaire Joined: April/05/2007 Location: United States Status: Offline Points: 3199 |
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You're new here aint ya?
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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LOL, God, I love that line! Well done! Was it Pat Palson the comedian?
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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