tryin 140 AMax in 6.5x47

[Eric Leonard]

started gettin heavy bolt lift at 37.5 VVN 150,,36 and 36.5 were close on elevation at 300 yards so gonna try at 36.25 and see how it goes across a chrono,,best load so far with 140`s for me has been 39 grs H4350 but was hoping for more than 2750 fps,,but that may be about all I can get with accuracy,

ladder with VVN 150 at 300

 

[ShootDots]

I have found with (3) 6.5 x 47 barrels that my best accuracy was from 39.7 to 40.2grs of H4350, shooting 140 class bullets. Also if you have VV N550 from 38.2grs to 39.0grs gave me the best accuracy. My first 6.5 X 47 Lapua shot a 4 shot group of 0.111 at 300 yards. I blew it on my 5th shot and it opened up somewhere in the low .400's.. I was shooting 39.7grs. of H4350 and the Berger 140gr LRBT... That bullet was simply awesome in my rifle.. I had a 26" barrel on that rifle and I was getting right at 2725f.p.s.

 

[Eric Leonard]

it shoots real well with about any powder at 2725-2765 but above that I start getting fliers,,if that is top end with accuracy I will just quit tryin and just shoot it,,but I keep reading about people gettin more speed,,

 

[ShootDots]

it shoots real well with about any powder at 2725-2765 but above that I start getting fliers,,if that is top end with accuracy I will just quit tryin and just shoot it,,but I keep reading about people gettin more speed,,

How long is your barrel Mr.Big?

 

[Eric Leonard]

28"

 

[ShootDots]

Well, I think at the 2750-2765 node you are right where you need to be.. With 28" and IF you pushed it, you could go to the very low 2800's. However, there is no apparent reason to go faster than what you are doing, especially at the risk of losing accuracy. In my "oh so humble opinion" accuracy trumps speed every time! You are doing just fine!

 

[Eric Leonard]

ok man thanx,,my main go to load is the 123 Scenar and 42.7 grs H4350 and it is really accurate at 2980,,I may get a chance to go and shoot where the 123 load may run out of gas and just tryin to get as much speed with the 140 class bullets to extend range a little but no use if accuracy is not there,,

 

[ShootDots]

ok man thanx,,my main go to load is the 123 Scenar and 42.7 grs H4350 and it is really accurate at 2980,,I may get a chance to go and shoot where the 123 load may run out of gas and just tryin to get as much speed with the 140 class bullets to extend range a little but no use if accuracy is not there,,

I would bet that if you run the ballistics on your 123 Scenar at almost 3000 and the 140 A-Max at 2750, you might find that the Scenar, even at 1000, may prove to be what you are hoping for out of the A-max's..

 

[Eric Leonard]

the 123 does good at 1,000 also,,but this will be further than that,,what I need is the max accurate range capable of this caliber,,

 

[ShootDots]

the 123 does good at 1,000 also,,but this will be further than that,,what I need is the max accurate range capable of this caliber,,

If you are serious about that, I would buy a pound or 2 of VV N550.. You WILL get good velocity. Now whether your accuracy will match up to the H4350 remains to be seen. It is fully capable of matching the accuracy of H4350 (in most barrels) and you WILL get more velocity. However, you will also eat your throat up a might faster..

 

[Dans40X]

I think you'll find that your polymer tipped projectiles won't be to call, no matter which powder or velocity you push them to in the LR game.

 

[Patch700]

I would have to agree with Dan , I've shot out several barrels in a 6.5x284 using 140 A-Max's and what I found was yes they were an OK bullet to a certain degree but I would be hesitant to utilize them for competition. .

I have tried them in 4 different lots and all were found to have problems with respect to bearing surface inconsistencies teamed with weight as well.

The last barrel I had that I was using them in was a long range varmint rig and for that purpose they shot decent enough with proper sorting.

Your results may vary of course , just saying don't wear out a good pipe trying to stay married to a particular bullet.

Good luck.

 

[Eric Leonard]

I shoot the 123 Scenar H4350 load 90% plus of the time,,just tryin to sort out a load when I go places that have targets that are longer than 11-1200 yards,,it wont be shot much at all I just like to be able to go as far as possible,,,at Rockcastle they have a plate at 1525 that would be a stretch for the 123 but a 140 at about 2800 might make it and still be going straight,,

I shot 3 3 shot strings on steel last Sunday with the 140 Amax at 800 yards at 2745 fps and from that limited sample shot well but at that speed it wont add maybe 50 yards over the 123,,

best 3 shots with 140 at 800,,39 grs H4350

 

[Erik Cortina]

Get N550 and 140 Hybrids if you want to shoot that far. 2,800 will not be a problem with N550 and the Hybrids will handle the long flight, the rest is on you.

 

[Drop Port]

Get N550 and 140 Hybrids if you want to shoot that far. 2,800 will not be a problem with N550 and the Hybrids will handle the long flight, the rest is on you.

+1 I don't know that you can find a better bullet for long range out of the 47L than the 140 Hybrid, if you can get them moving. With the FB that you have indicated in the past and a 28" barrel, there is no reason it shouldn't run 2800+ with H-4350.

What barrel are you using?
What neck diameter is your chamber, could you be tight in the neck causing a premature spike?

 

[Eric Leonard]

I am not sure about neck dia of chamber but is supposed to be no turn,,with 140 HT and H4350 it shoots well with H4350 at 40 grs at 2760,,groups open at 41-42 and start coming back at 43 but start feeling bolt lift resistance and primers getting pretty flat around edges at 43 and if used a drop tube and packed case full I believe it would come in and shoot like it does at 40 and would maybe be close to 2900 but I dont want to trash my brass,,I have 12 loadings on this brass and there may be 6-8 kinda loose in the primer pocket from working up loads but still holds and shoots good so I will assume my loads have not been over pressure,,
I may get new brass and turn necks down .001 and try that,,but is does shoot well with the 123 Scenar at 2965 with 42.7 H4350 and I cant get pressure with a cram packed case full with that bullet,,do you think I should be able to run the 140 with the case just poured full without getting pressure??I could with the 123 but best accuracy and SD numbers are at 42.7,,

Magnetospeed with 123 Scenar and 42.7 H4350,,made 10 300 yard egg shots in a row last Sunday and the 4 inch swinger at 800 is a really fun target,,

 

[Drop Port]

I'm all out of great ideas from 40.0 mine came back in within 2 grains. What primer are you using with the 140's and H-4350? Mine liked BR-4's with 40 grains and wouldn't come back in at the upper node until I used 450's. Definitely primer sensitive in mine.

 

[Eric Leonard]

I loaded 10 rounds at 42 grs H4350 and the 140 AMax and took them with me along with the 123 Scenars and they shot very well at 1200 but for whatever reason even at 40* I am getting pressure,,not bad but more than I like to run,,the 123 Scenars with 42.7 grs hit just as well at 1200 and we finally saw the hits at 1600 and with a 300 yard zero it took 67 minutes elevation and had 10 moa wind but the 123`s were still grouping well enough for what I need even at 1,600,,

 

[Changeling]

Hello Mr. Big. There comes a time when what you want and what is attainable cannot be had.
If you want to reach higher velocity in the 6.5 x 47 you will have to open the case up, and I doubt even then!

Your best bet is a larger case designed to reach higher velocities without beating the case to death or blowing up your action. The velocities you have been getting in the 6.5 x 47L is directly in line with what the Lapua engineers designed the case for at HIGH pressures with the latest powder technology.

I don't mean the things I've said to be taken in a disrespectful way whatsoever.
The work you have done and reported has definitely backed up what everyone was actually wondering about the 6.5 x 47L in a factual and honest way.

 

[Erik Cortina]

Hello Mr. Big. There comes a time when what you want and what is attainable cannot be had.
If you want to reach higher velocity in the 6.5 x 47 you will have to open the case up, and I doubt even then!

Your best bet is a larger case designed to reach higher velocities without beating the case to death or blowing up your action. The velocities you have been getting in the 6.5 x 47L is directly in line with what the Lapua engineers designed the case for at HIGH pressures with the latest powder technology.

I don't mean the things I've said to be taken in a disrespectful way whatsoever.
The work you have done and reported has definitely backed up what everyone was actually wondering about the 6.5 x 47L in a factual and honest way.

Please explain the statement in bold. Where did you get your imformation?