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#3678583 - 01/14/10 06:23 PM Re: Limits of the .260 rem on big game? [Re: Ol` Joe]
65BR Offline
Campfire 'Bwana

Registered: 02/22/07
Posts: 11978
Loc: NW Louisiana
I do think RP may a huge mistake limiting the 260 to a 9 twist, as it sometimes causing issues with some wts., and lastly, they IMHO should have launched the gun/ammo w/120 gr Corelokts given the primary use by most hunters - Deer hunting.

The 140s initially were apparently underloaded at around 2550, vs. the 2750 advertised/spec'd.

Greg, esp. if the 130 tested was a Barnes, I can imagine being a long monometal bullet, it acts as a much heavier bullet requiring faster RPMs to shoot well.

The 120 Barnes is bad medicine IMHO in the velocity range of a 260 and 6.5x55. No doubt it will give penetration etc. like a heavier lead core 6.5mm bullet, if not more.

Can't imagine much that Fed load 'TSX' cannot take in NA, with shot placement.
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#3679332 - 01/14/10 09:53 PM Re: Limits of the .260 rem on big game? [Re: 65BR]
GregR Offline
Campfire Regular

Registered: 09/05/02
Posts: 375
Loc: Texas
The 120 TSX worked beautifully for my kids on kudu and zebra, but I would still prefer to see a 130 for big stuff. I really miss the old 140 gr. Trophy Bonded Bear Claw load.
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#3680261 - 01/15/10 08:44 AM Re: Limits of the .260 rem on big game? [Re: 65BR]
260Remguy Offline
Campfire Kahuna

Registered: 12/18/02
Posts: 15633
Loc: NE
I'm shooting 140 grain Partitions in several 1 in 9" ROT Remington 260 and 6.5-284 barrels with MOA+/- accuracy. My 20" 7 MS parts gun shoots them into better than MOA groups, while my 24" 260 700 and 24" 6.5-284 7 do no worse then 1.5+/- MOA and the others fall somewhere in between. The 120 grain BTs and 129 grain SpirePoints and SSTs usually shoot the best groups, but no bullets in the 95 to 140 grain range shoots worse then 1.5+/- MOA in the 7 260s and 2 6.5-284s that I shoot on a regular basis.

Jeff

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#3680413 - 01/15/10 09:20 AM Re: Limits of the .260 rem on big game? [Re: 260Remguy]
65BR Offline
Campfire 'Bwana

Registered: 02/22/07
Posts: 11978
Loc: NW Louisiana
Greg, I can see the reason you want a heavier slug, Larger animals like them less wink I wonder if the TBCC was Disc. due to various twists/accuracy results in various brand factory rifles?

Be interesting to look when I get home at my Asquare manual to see if the 6.5/308 Asquare was Saami'd originally as an 8" ROT?

Jeff, I'd bet the 9" ROT 700/7s do better running the 140s at top speeds, but would expect them to get less consistent at lower speeds. I did not Chrony my loads w/PTs thru my 6.5/308 so it's possible they were not up to snuff. I recall burning up some AA powder at the time that may have been less than optimal. As I mentioned, the boy's Sako 9 shoots well, but I never had any luck w the loads I tried, in my Rem 7's. I have heard the 125 PT is often simply a better shooting bullet than 140 PTs in 6.5 but generalizations are flawed as an adage an old BR shooter told me is true, 'you never know till you try a specific bullet/powder combo'...in your particular rifle.

Many times there are trends. One would expect once you have a given velocity, with a known/checked twist rate, you can predict if a bullet is spinning well enough to expect to shoot. There should be 'sweet spots' in RPMS for various bullets.
_________________________
Rule #1 - Punch Vitals with a good bullet.
Rule #2 - See rule #1


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#3680503 - 01/15/10 09:41 AM Re: Limits of the .260 rem on big game? [Re: 65BR]
260Remguy Offline
Campfire Kahuna

Registered: 12/18/02
Posts: 15633
Loc: NE
Agreed that you can often tune the accuracy of a particular bullet/barrel combination by varying the velocity. You can often get good accuracy out of barrels that have too slow a ROT and a bullet that is too long for that too slow ROT by pushing the bullet at, or close to, the maximum safe pressures. This method seems to work in 140 grain in 1 in 9" ROT .264" bores and 120 grain in 1 in 10" ROT .257" bores.

I've never had much success with the 125 grain Partition in any .264" bore rifle. I don't know why, but the 120 grain BTs and 129 grain Hornadys will all shoot better groups with less effort than anything that I've tried with the 125 grain Partition.

Jeff

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#3680736 - 01/15/10 10:45 AM Re: Limits of the .260 rem on big game? [Re: 260Remguy]
utah708 Offline
Campfire Tracker

Registered: 08/05/04
Posts: 6060
My own philosophy is that I see no reason for pushing a cartridge near its boundaries. After all, there are so many pawn shop '06s floating around that I have no reason to ask the .260 to try to be one.

That being said, as a deer and antelope gun, the .260 Rem has few rivals. I also know that it is plenty ample as a cow elk cartridge. Beyond that, I am grabbing a bigger gun because I can.

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#3682335 - 01/15/10 06:29 PM Re: Limits of the .260 rem on big game? [Re: utah708]
65BR Offline
Campfire 'Bwana

Registered: 02/22/07
Posts: 11978
Loc: NW Louisiana
260 guy, hate to admit I never bought 120 NBTs, but did 100s as I got a STEAL on almost 2k of them years back when I had my 6.5-308 built. The 129s shot so well in it, and my '96 Mausers I never saw a reason to shoot the 120s or 125s. 120 CLs did a few deer in DRT, as they were cheap enough to beg me to try them. Accuracy was not stellar, but killing results were!

I merely compared the 125 to the 140 PT, but based on the experience I had w/129s on deer, I'd venture to say at 260/6.5 Swede speeds, there may be less difference than more, on how a 129 compares in wt. retention, penetration, and frontal diameter vs. the 125 PT. I'd not hesitate to punch an elk, blackie, or even Moose w/one.

Right now 130 ABs are doing so well, it's my 'go to bullet' for now. Later I may try the 140 versions, and when my Bartlein bbl coming gets chambered up, I can envision taking a deer w/Bergers 130gr as I hear they spell lights out also.

I like to experiment no doubt, but I as you Jeff found long ago the 129 is a hard bullet to beat for any 6.5, whether 8 or 9 ROT, and for most general Big Game. NEVER have shot a bad group in anything w/129s. That is referring to the SP, as there is a diff in the SST, I hear some say it's 'softer' and can imagine it might be, so I would simply use the old proven SP.
_________________________
Rule #1 - Punch Vitals with a good bullet.
Rule #2 - See rule #1


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#3687326 - 01/17/10 08:11 AM Re: Limits of the .260 rem on big game? [Re: 65BR]
AggieDog Offline
Campfire Guide

Registered: 12/27/02
Posts: 3642
Loc: Northern California
My Rem 700 SS CDL fluted barrel, 24 inches long, handles 140's just fine. Those were corelok's. I like to shoot 120 ballistic tips and 120 corelok's in the rifle.

The 260 Rem is a classic example how Remington always screws up launches of new cartridges. (or often does re 7mm mag). That little 260 Rem is what the 243 win was touted to be; a dual purpose varmint and big game cartridge. Had they promoted it as such, and provided the correct ammunition for the cartridge, and not stopped after a few years, their success selling it would have been much greater I suspect. They launched with the fat mags around the corner and freaked out in my opinion, bailed, and started introducing their Saums.

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#3687698 - 01/17/10 09:50 AM Re: Limits of the .260 rem on big game? [Re: AggieDog]
gmsemel Offline
Campfire Tracker

Registered: 01/28/01
Posts: 5476
Loc: East Haddam, CT
I don't own or have ever shot a 260 Remingtion. But I have and still hunt with a 6.5 x 55 all I can tell you is that while I would think long and hard about a 400 yard shot with any cartridge because I don't shoot at those ranges, since my home range is a lot shorter than that. That being said, Yea you put a good 120 to 160 bullet in the right spot like an elks heart or lungs and guess what you better have a real sharp knife and some meat bags. I have always looked at the 6.5 x 55 as being something of a pocket 270, And there are no flies on the 270 as a game getter. If I didn't have a 6.5 x 55 and wanted a 6.5 mm cartridge, I would buy a 260. And this if from a fellow that shot most all if his elk except 2 with either a 7mm Remington Mag or 338 Winchester Mag. Mostly with the 338 because I like the rifle. The other two that was with a 6.5 x 55 and some Norma 156 gr Loads from 21 years ago.
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#3689268 - 01/17/10 03:30 PM Re: Limits of the .260 rem on big game? [Re: gmsemel]
65BR Offline
Campfire 'Bwana

Registered: 02/22/07
Posts: 11978
Loc: NW Louisiana
Aggie, agreed.....they (Rem) perhaps correlated their EGOS w/size and paper stats of cartridges, instead of looking deeper as those in the know do smile

Shot placement is a necessity regardless of power, etc. I don't advocate long range shooting for the masses, but realize when those who prepare and study ballistics well, having sufficient range time, they CAN be effective further than many hunters w/o that experience and knowledge. If in doubt......one should likely hold fire.

My furthest kill was a deer right at 400 yds, using a pipsqueak 6mm BR. I had practiced often to 415 yds and well knew where to hold w/my mil-dot scope, threaded a 105 amax thru both lungs broadside w/retained energy of just over 1k, and it was down in less than 25 yds.

I had 100% confidence when squeezing off that shot as I knew my rifle, and the range. I had virtually no wind, a calm animal walking slowly so conditions were good. A rock solid rest w/a heavy bbl Ruger #1 w/Kepplinger set trigger breaking at 8 ounces made it a chip shot to be honest. When all is right, shots can be made much further but bullets drop and drift ALOT as one gets on out there and I typically use a 400 yd limit for me, and usually kill at if not much less than half that distance.

When the conditions are poor i.e. bad shot angle, having surplus energy, etc. is not a bad thing if one is considering a shot. If one knows their rifle and cartridge limits and is confident all is usually well, but if confidence is lacking, one might better change what tools they use for the job. I believe a LACK OF CONFIDENCE can be detrimental to bullet placement just as excessive recoil as lack of shot cycle follow thru may occur.
_________________________
Rule #1 - Punch Vitals with a good bullet.
Rule #2 - See rule #1


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