Thread: Seriously underrated 6.5x47 Lapua

Dam - what have I been missing here - "6.5x47 Lapua" so wasn't the slightest interested in "another" primer induced explosion
All the time it was about everything else other than by the looks - have I missed it or is still running hot

Shit guys I go away hunting for 4 days and you cant play nice and keep my thread on track?!

Actually I dont mind the secondary topic as it is quite relevant and an interesting topic. @Flyblown and I had quite a few conversations about this while we were in the field and we had some interesting related events which I will go into more about later.
The 6.5 Lapua got a fair work out and lots of testing and I am more than excited about the results.
We have a heap of pics and video footage which we will share in due time.

Just got home and need to clean the gear and process some meat.

People clearly just got over excited by the x47

I wonder if any of those who don't want us to discuss muzzle flip and recoil after the projectile has left the barrel are aware for a round that sends 140g at serious speeds there is virtually none of either?

As in I don't thing there is a round that boots less for the ammont of downrange oomph.

Originally Posted by Tussock

As in I don't thing there is a round that boots less for the ammont of downrange oomph.

Of course not, recoil is a linear relationship with muzzle energy.
If you want more oomph down range you will inevitably get more recoil.

Whether the 6.5x47 hits the sweet spot between the two is down to personal preference.

Originally Posted by Beetroot

Of course not, recoil is a linear relationship with muzzle energy.
If you want more oomph down range you will inevitably get more recoil.

Whether the 6.5x47 hits the sweet spot between the two is down to personal preference.

Recoil is quoted as a linear relationship to muzzle energy, but muzzle energy is divided between the projectile and the venting gas. The projectile and the venting gas have a different effect on felt recoil. Recoil is an equation with muzzle energy in it. Felt recoil is what transfers to the shoulder.

Take a rifle and shoot it with a 26" barrel and then shoot it with a 10" barrel. Minus the difference in friction down the barrel, the muzzle energy is the same. See if they both feel the same to shoot. At 26" the energy is in the projectiles motion, and at 16" the gas discharge. At 16" some of the energy is probably in a huge fire ball of un-burned powder. Try a muzzle brake. The muzzle brake does not direct the projectile out sideways.

A linear relationship between felt recoil and muzzle energy is an oversimplification. It comes down to efficiency. How much from the energy from the powder (the only source) can be transferred to the projectile. I personally think the projectile moves the gun very little compared to the high pressure gas at the muzzle and the diameter of the hole the gas vents out of. I think nothing makes more efficient use of the powder in a 20" barrel (or there abouts) than a 6.5x47L. I think Lapua planned that. It is not a consideration in most rounds.

Be curious to know how many people have actually shot 6.5x47

Originally Posted by Tussock

Recoil is quoted as a linear relationship to muzzle energy, but muzzle energy is divided between the projectile and the venting gas. The projectile and the venting gas have a different effect on felt recoil. Recoil is an equation with muzzle energy in it. Felt recoil is what transfers to the shoulder.

Take a rifle and shoot it with a 26" barrel and then shoot it with a 10" barrel. Minus the difference in friction down the barrel, the muzzle energy is the same. See if they both feel the same to shoot. At 26" the energy is in the projectiles motion, and at 16" the gas discharge. At 16" some of the energy is probably in a huge fire ball of un-burned powder. Try a muzzle brake. The muzzle brake does not direct the projectile out sideways.

A linear relationship between felt recoil and muzzle energy is an oversimplification. It comes down to efficiency. How much from the energy from the powder (the only source) can be transferred to the projectile. I personally think the projectile moves the gun very little compared to the high pressure gas at the muzzle and the diameter of the hole the gas vents out of. I think nothing makes more efficient use of the powder in a 20" barrel (or there abouts) than a 6.5x47L. I think Lapua planned that. It is not a consideration in most rounds.

Be curious to know how many people have actually shot 6.5x47

Regarding recoil, can anyone answer the following question and not just guess or speculate on the answer: If two rifles of identical weight and effective barrel length ahead of the chamber, one a 6.5 06 and the other a 6.5 saum are loaded with identical powder charges and projectiles the 6.5 saum will achieve a higher muzzle velocity. Q Is there any difference in recoil ??

sorry to all and sundry for getting off track.....as for moderating it...well on yet another forum what we do is split off the off topic bit at moderator lever and chuck it back up as a seperate thread......doesnt happen often LOL keep the photos etc coming Wingman.

Righto, hopefully this short vid touches on the fore mentioned questions of rifle hold/control, 6.5x47 Lapua's recoil and ergonomics of the Desert Tech's bolt configuration.

This was a quick check of my 130gr TMK load's ballistics correlation with my chrono and strelok. @Flyblown was spotting, I was shooting a rock at 497 meters (544 yards).



Following this test we moved out to 1012 meters and put this 5 shot group on a rock after a couple of sighters.



The following morning we put a paper target next to the rock to try and get a a better group. Unfortunately there was an ugly gusty wind and we couldnt see the hits so I only got one of 5 shots on the paper (4x A4 pages) you cabn see the hole on the R/H lateral line and the rest drifted off the paper to the right.

How did it go on the deer?

It went very well.. took some longer range goats too. 200 to 600 meter shots all were instant drop on the spots apart from one goat that I hit a little far back at 330 meters and required a follow up shot.
The Sierra tipped match king although a little lower in BC than some of the other 130gr range available it has been absolutely dependable on all game. All bang flops.. nothing walked.
I did have one anomaly on a fellow at 200 meters that stepped forward as I shot. The bullet hit a little far back behind the shoulder turning the liver to pulp and passing through the front of the rumen which must have acted like a thick ballistic gel because the bullet didnt exit. I punched through a rib on the exit side but stopped under the skin.
A 100% energy dump that dropped the fallow on the spot and caused some very interesting internal trauma that I have not seen before with this bullet.
The norm with the TMK is a pass through with great expansion and wound channel with an exit wound of about an inch. Very little to no meet damage on most accounts if placement is right.

Is that a grip pod? Do you rate them.? I saw one on Ali express for 20 bucks that I thought would be worth trying. I'd need an M lok adaptor though

No its an Atlas bipod

Good stuff. Nothing I shot with mine went far. Love those 6.5/140s.

Originally Posted by Tussock

Good stuff. Nothing I shot with mine went far. Love those 6.5/140s.

What 140s do you use please, and if more than one type, how would you order them in terms of accuracy in your x47 ?

Originally Posted by Puffin

What 140s do you use please, and if more than one type, how would you order them in terms of accuracy in your x47 ?

AMAX, which no longer exist.