6.5-47 Lapua Seating Depth

[Desert Fox]

Checking max seating depth to fit the AICS magazine using the 308 case as guide. Don't have a 6.5-47 case yet, I will be ordering component here in the next couple of days. The 308 is a tad longer than the 6.5-47 but the case size is almost identical. The bullet from top to bottom are Sierra 140, 142 and Berger 140. Looks like I have enough room for 40 grains of H4350.

 

[SJB358]

Very cool. I think USMC89 is looking to build the 6.5 Lapua as well. Seems like that little 6.5 is getting some steam. Can't wait to see what your loaded ammo looks like DF. Should be a heckuva shooter. Scotty

 

[Guy Miner]

A buddy of mine owns this backwards bolt 6.5x47. It shoots GREAT. Even with the bolt on backwards, and the stock about two inches too short for me, I had lots of fun with it one day, pounding the 600 yard target. Very nice.

He's been running it for a couple of years now. Great little cartridge. Zippy.

Guy

 

[Desert Fox]

There's something about this little cartridge that although it was originally designed for 300 meters competition, the 6.5-47 will be just at home if not better at 1K.

I run the numbers in my Ballistic FTE using Berger 130 grain VLD bullet at 2850 fps velocity, a very conservative number. I can get to 1K with only 21.40 MOA of come-ups, and burning only 40 grains of powder in the process. Those are excellent number. I can't wait to put this rifle in a wringer.

I've seen this little cartridge in action at our club and I know what it can do. This years champion at our club use his 6.5 -47 carry him to through the final, only to drop it in favor of his Sako TRG in 260 to finish the year with the championship. The 6.5 reign supreme. Like they said "if you can't beat 'em join them".

 

[GSSP]

Fox,

I run two 6.5x47's.

The first, my BIG, rifle is built on a Surgeon action, 26" MTU Krieger 1:8.5, AICS stock, NF 5.5-22x50mm.

My load is 40.8 gr H4350, CCI 450 and 130 VLD, .010" into the lands. It runs 2850 down to 2820 fps, depending upon throat wear and temps. I've run about 1300 rounds now and still holding .5 MOA 5-shot groups out to 1k. I've lost about .08" of throat (2.795" OAL) but has stayed put since around round 800. I won the Utah State Sniper Shoot with it back in Sept. Oh, and FYI, I have not cleaned this barrel since round 300!

My second rifle is my LITTLE Pierce with a #3 26" Broughton 1:8, in a McMillan Rem Sporter stock, NF 2.5-10.

My settled upon load is 42.1 gr Rel 17, 140 VLD and Fed 205M, about .010" off the lands, for 2920 to 2960 fps. This is 1.5 gr below my rifles max where I hit 3020 fps with a "HINT" of difficult bolt lift. I realize this is fast but experienced -47 loaders are finding that the little rifle primer case takes the pressure and just keeps on smiling. It's also a .5 MOA rifle/load. I also like the 140 PT and 41.6 gr Rel 17 for 2869 fps; also .5 MOA.

 

[SJB358]

Very nice rifles buddy! Those look terrific!

 

[Desert Fox]

Holy cow GSSP. That 6.5 47/140 grain load equal my 6.5- 284 load. I'm using 50.5 grain of IMR 4831 at 2975 fps. On a cold day, I was able to push the 140 up to 3,000 fps with no bolt problem but I'm not comfortable with it so I backed it off a bit. My barrel is 26" Lothar Walther and has 8 twist.

I have Krieger barrel on my 6.5-47 also, but my twist is a bit faster than yours. I will try both Reloader 15 and H4350 and see which powder will give me the speed and accuracy.

 

[Desert Fox]

Die and component arrived today. Load development will begin soon.

Cute little cartridge.
L-R: 308 Winchester, 6.5-47 Lapua, 6.5-284 Norma, 7WSM, 338 Lapua Ackley.

Seating depth.

 

[nvbroncrider]

Elevation probably helps him out a bit DF I know I can load my .243 up to 50 gr of 4350 with a 70 BT on top a slightly flat primer but bolt is normal. FYI 50gr is all the way to the top of the case. I'm loading @ 48 gr right now with it and that's like a grain above book max if I remember right. I'm going to back it off a touch for accuracy and barrel life. I'm at 4500ft and I believe that's part of the reason my velocities are a bit higher than others thinner air less resistance. My 280 with 150PT and 55.5 gr of 4350 I'm at 3150 out the muzzle. I think that's part of it.

That 6.5-47 is sweet looking and the way you got it seated your definately using all of your case capacity!!! It might also be a deal where that guy found the perfect powder for that cartidge too. Kinda like using 7828 in the 280 for the 160 or 175 where you traditionally think you should see a major drop off in performance but by changing powder your shocked by the results.

 

[Desert Fox]

Nv, I have a friend here that shoots the 47 with almost similar result... just a tad slower than that of GSSP and he told me that it's not healthy on brass. We're at 2100 ASL here at our club range. I'm not a speed freak. I'll set my velocity goal! Once I arrive there, as long as the pressure remains normal, I'll stop.

 

[DrMike]

Rommel,

The .308 and 6.5-284 always look business like. And I just love the little fat guy, the 7mm WSM. The 338 Lapua is just awesome juxtaposed to the other cartridges. But the little 6.5-47 Lapua is justifiably comely. That longish bullet hanging out of that little case makes it look as if it is a sleeper. Great pictures.

 

[GSSP]

Elevation probably helps him out a bit

I'm at 4500ft and I believe that's part of the reason my velocities are a bit higher than others thinner air less resistance.

I think that's part of it.

NV,

Please explain. I too am around 4500-4900' elev when I run my chronograph. I'm having a hard time understand how the "thinner" air between the muzzle and chronographs, 10'-15', can have a significant increase upon velocity. I believe it does when shooting way out yonder.

Alan

 

[Wincheringen]

How much different is the 6.5x47 than a 6.5 Creedmoor? Your COAL, charge weights, and velocity are all identical to the 6.5C.

 

[GSSP]

Not too much difference.

- Lapua vs Hornady brass = Known/better quality with Lapua but I'm sure some may differ in opinions.
- small vs large primer pockets = ability to run higher pressures in Lapua brass

Alan

 

[Desert Fox]

Please explain. I too am around 4500-4900' elev when I run my chronograph. I'm having a hard time understand how the "thinner" air between the muzzle and chronographs, 10'-15', can have a significant increase upon velocity. I believe it does when shooting way out yonder.

Alan, I believe Nv, meant the downrange performance.

Can you tell me what's your COAL on that 6.5-47 of yours.

Thanks,
Rommel

 

[Desert Fox]

Rommel,

The .308 and 6.5-284 always look business like. And I just love the little fat guy, the 7mm WSM. The 338 Lapua is just awesome juxtaposed to the other cartridges. But the little 6.5-47 Lapua is justifiably comely. That longish bullet hanging out of that little case makes it look as if it is a sleeper. Great pictures.

DrMike, It will be a sleeper alright. Not bad for a cartridge that was originally design for 300 meter competition.

I know you're going to comment on the short little fat guy. I can't blame you, I like him too.

 

[GSSP]

Please explain. I too am around 4500-4900' elev when I run my chronograph. I'm having a hard time understand how the "thinner" air between the muzzle and chronographs, 10'-15', can have a significant increase upon velocity. I believe it does when shooting way out yonder.

Alan, I believe Nv, meant the downrange performance.

Can you tell me what's your COAL on that 6.5-47 of yours.

Thanks,
Rommel

My BIG Surgeon with the 130 VLD has burned out enough to where their about 2.800". The little Pierce with the 140 VLD's are 2.720". I just haven't shot enough to burn out the throat as much as I have the Surgeon. In addition, I seat the 130's about .010" in and the 140's about .020" out as it' s a hunting rifle.

Alan

 

[Wincheringen]

Not too much difference.

- Lapua vs Hornady brass = Known/better quality with Lapua but I'm sure some may differ in opinions.
- small vs large primer pockets = ability to run higher pressures in Lapua brass

Alan

I think the Hornady brass is the reason the 6.5C isn't more popular. Personally I don't care for Hornady brass.

Anyway, I'm going to investigate this further. It would be awesome if Nosler would make some Creedmoor brass.

I guess the Lapua case is shorter so no way to use it for the C.

 

[SJB358]

Rommel,

The .308 and 6.5-284 always look business like. And I just love the little fat guy, the 7mm WSM. The 338 Lapua is just awesome juxtaposed to the other cartridges. But the little 6.5-47 Lapua is justifiably comely. That longish bullet hanging out of that little case makes it look as if it is a sleeper. Great pictures.

DrMike, It will be a sleeper alright. Not bad for a cartridge that was originally design for 300 meter competition.

I know you're going to comment on the short little fat guy. I can't blame you, I like him too.

Very cool picture!

 

[nvbroncrider]

Elevation probably helps him out a bit

I'm at 4500ft and I believe that's part of the reason my velocities are a bit higher than others thinner air less resistance.

I think that's part of it.

NV,

Please explain. I too am around 4500-4900' elev when I run my chronograph. I'm having a hard time understand how the "thinner" air between the muzzle and chronographs, 10'-15', can have a significant increase upon velocity. I believe it does when shooting way out yonder.

Alan

Both long range and at the muzzle. Speed of sound is 761 mph @ SL while it is 660 mph @ 40,000 ft ASL so yes it does make a difference same with the boiling point of water. How much of a difference I'm not exactly sure but it does.