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155 lapuas varget

dar1246

dar1246

Gunny Sergeant
Full Member
Minuteman
Nov 6, 2008
1,094
2
55
Nebraska
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Loaded some lapuas tonight and shot them. Here is the load.
Remmington 5r milspec 26" factory barrel Correction it is a 24" barrel


155 lapuas
lapuas brass
FGM210 primers
2.915 COAL
49.2 grs Varget

<span style="color: #FF0000">USE CAUTION WITH THIS LOAD. IT IS WAY OVER MAX!!!!</span>
Start using recommended loads and work your way up.


I haven't chrono the gun yet but not showing any signs of pressure. Thinking should be around 2900 to 2950. Will post the chrono results when done.
 
Re: 155 lapuas varget

Was experimenting with the 208 Amaxs. I started seated them way out there. Those are like shooting mini VW bugs out the barrel. Thought what the hell. Started work on a load for the 155s. When I seated farther down I showed more pressure signs. So I seated them way out. Seems to work great out of my Factory Rem. I did a ladder for the load. That is what I ended up with that shot the best.
 
Re: 155 lapuas varget

Holy shit, that's hot! I had so many problems with Varget pushing the 155 Scenars that I switched to N540.
 
Re: 155 lapuas varget

I use to only shoot about 45 to 45.5 grs of Varget, when I seated the bullets around 2.820. The bolt seem to get stiff. Thought I would try to seated them farther out. I started at 45grs and worked my way up.
 
Re: 155 lapuas varget

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Dogtown</div><div class="ubbcode-body">Holy shit, that's hot! I had so many problems with Varget pushing the 155 Scenars that I switched to N540. </div></div>

You ever tried any of the 550?
 
Re: 155 lapuas varget

I get 2928 out of 46.5gr varget 155's, wow you are almost 3 gr. higher.
 
Re: 155 lapuas varget

The wind broke my chrono the other day. So I have to get my other one out tommorrow and shoot. I would like to see how fast it shoots. It waded them up at 100 yds. I loaded 49.5 grs but the bolt got a little stiff and the group open up some. I backed it back down. It is shooting a 1/2 moa.
 
Re: 155 lapuas varget

jhedg

2929 is really good. Most of the time at 45 grs. I was getting around 2780 out of my gun. You might have a tighter chamber than mine.The 2900s was my goal.
 
Re: 155 lapuas varget

Holly crap. I thought my 47.5 grains was hot. Also, how compressed is your load? How many reloads can you get out of your Lapua brass with that load?
 
Re: 155 lapuas varget

So far the load hasn't shown any that much pressure on the case yet. When I was loading the lapuas at 45 grs and 2.820 about 5 reloads out of the brass.
 
Re: 155 lapuas varget

Chrono the load today with a CED at 12ft off the muzzle. Overcast some. Here are the numbers. Outside temp 50.

2830fps
ES 25
SDS 9

I would have thought the load would have been a lot faster. I going to the field and check the data at 600,700 and 800. To see if the moas is correct.
 
Re: 155 lapuas varget

Ballastics Data(2830fps) chrono
moa
600 13.3
700 17.2
800 21.6

Field Data (actual dope)
moa
12.1
15.25
19.5

Each 100 yds shot 10 round on target on the actual field data. I think this would suggest the load is shooting around 2900fps. Wind was blowing at 8 oclock at 10mph use 1/4 of the value 1.75 and was hitting the tagert. Ran the ballastics program again at 2900fps and all data confirms the speed at 2900fps.
 
Re: 155 lapuas varget

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dar</div><div class="ubbcode-body">Chrono the load today with a CED at 12ft off the muzzle. Overcast some. Here are the numbers. Outside temp 50.

2830fps
ES 25
SDS 9

I would have thought the load would have been a lot faster. I going to the field and check the data at 600,700 and 800. To see if the moas is correct. </div></div>

Are you sure the chrono data is correct? My 47.4 grains pushes the 155 scenars around 3000 fps.
 
Re: 155 lapuas varget

I think the chrono is wrong. According to the ballastics program and feild data. Should be shooting at 2900fps. All the dope from the program matches extactly with the field data.
 
Re: 155 lapuas varget

I load 155 scenars at 2.943 OAL with 47.8 gr Varget and get 2925-2950 fps from a 24" barrel. I consider this load at the edge of sane pressures. With Lapua brass It should be laoded to 47.4-5 gr Varget for the same performance.

Now if you are only getting 2830 fps from 49.x gr Varget, I would suspect something amiss with your chronometer.
 
Re: 155 lapuas varget

I do agree that the chrono is not reading right. But from the field shooting. I think from the bullet path. It will be at 2900fps. We I ran the Sierra Inf. program. The exact dope was at 2900fps on the nose.
The chrono may have been off due to cloud cover or something.
 
Re: 155 lapuas varget

i was testing some rounds today and was hitting 2900 with 46.5 grs and .005 off my lands


26" bull bbl fluted savage tigershark
 
Re: 155 lapuas varget

Chrono-ed my 155 Scenar, Varget 46.5 and Lapua brass load. Got 2970 from freshly full-length resized brass that had been reloaded five times. Got 2950 from fresh, never-fired Lapua brass.

Forgot: Loaded to 2.915 and shot through a AI AW 308 with 24" barrel
 
Re: 155 lapuas varget

do u get an increase in velocity and/or accuracy when u load the Scenars longer? this is what I have been doing:

avg. MV: 2770fps
Federal brass
46.8 grs Varget
CCI
2.810"
20" barrel (Rem sps-t)

would like to get these guys going faster, but groups opened slightly when loaded above 47.4 grs.
 
Re: 155 lapuas varget

my first test shots had better accuracy with them .005 off the lands but not by much
touching 5 shot .572 ctc 45.5
.005 off 5 shot .492 ctc 45.5

touching 5 shot .566 ctc 46.0
.005 off 5 shot .602 ctc 46.0

46.5 didnt shoot that good this was with new brass gonna reload and shoot again with the brass only neck sized to see if it improves any
 
Re: 155 lapuas varget

Depends on if you have a tight chamber or not. I would try around 2.820 and work my way up with the load. I shot 45 to 46 grs of Varget for the longest time. Have more than one reloading manual (Nosler seems to be a little more aggressive than Sierra, Hornady and others).

When I lenghten the COAL I was able to add powder without pressure. I might not have a tight chamber. Which would allow me to do this. If you have a tighter chamber you can use less powder to achieve the same results.
 
Re: 155 lapuas varget

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dar</div><div class="ubbcode-body">Thinking should be around 2900 to 2950.
</div></div>


You're goin' faster than that... <grin>
 
Re: 155 lapuas varget

I'm runnin the following:

47.5gr Varget
Win/BHA brass
2.86 oal (I measure from ogive though which is 2.4)
155 scenar

gets me 2900 fps confirmed with chrono & real world dope
 
Re: 155 lapuas varget

Holy crap that is a lot of powder!!!

My current .308 155 Scenar load is 45.6grs of Varget, Lapua brass, and CCI BR2 primers. I seat the bullets .035 off the lands since groups opened up the closer I got to the lands oddly enough.

Still though, I ran up to 48 grs of Varget and my ejector was wiping the headstamps off my brass. Would probably blow up in my face if I went over 49 grs. I'd probably flinch just pulling the trigger on that load.

Be careful Bro.
 
Re: 155 lapuas varget

i think on my next load out i'm gonna have to see what they do seated futher back and see what they do. they did seem to be opened up alittle more seated touching the lands
 
Re: 155 lapuas varget

Oddly enough the brass is showing no signs of pressure. The bolt is not hard to lift. When I took it to 49.5 grs the bolt got stiff. I tried it with my other 308 in a 20"barrel and got it up to 2900fps. I would have thought the load would be going around 2950 to 3000. The temp was 50 degrees. It might be going a little faster but not much.
 
Re: 155 lapuas varget

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dar</div><div class="ubbcode-body">Loaded some lapuas tonight and shot them. Here is the load.
Remmington 5r milspec 26" factory barrel


155 lapuas
lapuas brass
FGM210 primers
2.940 COAL
49.2 grs Varget

<span style="color: #FF0000">USE CAUTION WITH THIS LOAD. IT IS WAY OVER MAX!!!!</span>
Start using recommended loads and work your way up.


I haven't chrono the gun yet but not showing any signs of pressure. Thinking should be around 2900 to 2950. Will post the chrono results when done. </div></div>


This seems insane. At 46 grains you are already compressing the load, at 49... you must be packing with a shovel.

I would recommend that no one use a load this hot, there's no use for it and you risk serious injury to yourself and others.
 
Re: 155 lapuas varget

<span style="color: #FF0000"><span style="font-size: 20pt">LOOK AT HIS OAL PLEASE!!!</span>
</span>
It is not as compressed as you might think...
 
Re: 155 lapuas varget

The load is not that compressed. The case is not completely full. I have load 2 rifles this way with no problems. Each rifle is different so I would work up a load to a safe level.
 
Re: 155 lapuas varget

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wil</div><div class="ubbcode-body"><span style="color: #FF0000"><span style="font-size: 20pt">LOOK AT HIS OAL PLEASE!!!</span>
</span>
It is not as compressed as you might think... </div></div>

Thank you wil, I did.
 
Re: 155 lapuas varget

re chrono the rifle. Here is the numbers that seem more realistic. Shot a 22 shot string over the chrono.

High 3007
Low 2957
SD 11.3
ES 50
Av 2974
95% +- 5.3
1)2991.0 (ED)
2) 2970.0 -3.2
3) 2972.0 -1.2
4) 2973.0 -0.2
5) 2971.0 -2.2
6) 2971.0 -2.2
7) 2967.0 -6.2
8) 2983.0 9.8
9) 2983.0 9.8
10) 2982.0 8.8
11) 2965.0 -8.2
12) 2962.0 -11.2
13) 2967.0 -6.2
14) 2974.0 0.8
15) 2987.0 13.8
16) 3007.0 33.8 f
17) 2985.0 11.8
18) 2963.0 -10.2
19) 2963.0 -10.2
20) 2965.0 -8.2
21) 2971.0 -2.2
22) 2957.0 -16.2
23) 2951.0 (ED)


Shooting a half MOA
 
Re: 155 lapuas varget

I'm getting 2899 with 47 grains. Your chamber must be loose. Is this a 24" bbl?
 
Re: 155 lapuas varget

The AI AW that the test above was shot on is a 24" Barrel for reference, I forgot to include the barrel lenght.
 
Re: 155 lapuas varget

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dar</div><div class="ubbcode-body">It is a 26" barrel. </div></div>

Your chrono lies.

I would back that load down as well, or get a 30-06 if you really think you need to push the 155s that hard.

They shoot great right at 2900 FPS.
 
Re: 155 lapuas varget

The bearing surface of the 155 lapua is real short when compared to other similar projectiles.Which allows you to get away with hotter loads.

Case head expansion,bolt lift,extractor marks etc. are a piss poor indicator of pressure in todays rifles.The tolerances of components in rifles today are to the point,that you often don't get indicators until you end up with catastrophic failure or serious injury.A chronograph and the intelligence to follow and understand it,is the only commonly available safety measure available to shooters wanting to push the envelope.Short of a pressure barrel.
 
Re: 155 lapuas varget

I have shot 100 rounds with this load and still havent shown signs of pressure. I do have another 308 that only allows me 47rs of Varget to get 2860fps out of it. This gun shoots and performs at that load.

If it showed any signs of pressure on any gun. I take the load down until a safer level.
 
Re: 155 lapuas varget

dar,
Are you sure your powder scale isn't off? I don't think I could hardly fit 49g of varget in a .308 case? Maybe your scales off and you are actually loading less powder than you think. May explain velocities and no pressure signs. Just a thought....
 
Re: 155 lapuas varget

I have 2 RCBS chargers. Both are on. 47grs is not up to the neck area. The 49.2 is at the bottom of the neck maybe slightly into the neck.
 
Re: 155 lapuas varget

dar,
Man I think there a chance there could be a problem with your charge thrower. I just weighed 49.2 gr varget and it was more than halfway up the .308 neck. I filled a case to the base of the neck, and then weighed the varget, and it was 45gr. I know that's not real scientific but looks like one of us may have problem. Just trying to help. Maybe someone else could check me with there observances.
 
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