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ocabj
06-02-2008, 10:49 AM
On 05/23, I received the new WOA SR upper I had ordered a month and a half prior. I wanted to get a new upper ordered before WOA is forced to raise their prices (considering their complete SR upper has been the same price for the past 2 years, and with today's climbing metal prices, something has to give).

Anyway, here's a few unboxing photos:

http://www.ocabj.net/gallery2/d/5334-1/IMG_5060.jpg
New t-shirt!

http://www.ocabj.net/gallery2/d/5338-1/IMG_5080.jpg
Pinned rear sight, of course. Why not for a measly $55?

http://www.ocabj.net/gallery2/d/5344-1/IMG_5094.jpg
Typical windage adjustable front sight base.

http://www.ocabj.net/gallery2/d/5350-1/IMG_5106.jpg
Lots of oil to be cleaned off.

ocabj
06-02-2008, 10:51 AM
http://www.ocabj.net/gallery2/d/5356-2/IMG_5156.jpg
Standard bore cleaning.

http://www.ocabj.net/gallery2/d/5359-1/IMG_5136-cropped.jpg
Fresh and clean.

http://www.ocabj.net/gallery2/d/5362-2/IMG_5193.jpg
Measuring/recording the seating depth to lands with Berger 80gr VLD and 82gr BT at "zero" round count.

ocabj
06-02-2008, 10:54 AM
http://www.ocabj.net/gallery2/d/5365-2/IMG_5217.jpg
Breaking in can be a chore.

http://www.ocabj.net/gallery2/d/5380-2/IMG_5314.jpg
Chronotesting Lapua 77gr BTHP (24.0gr RL15, Remington 7-1/2, LC03). ~2750fps avg.

http://www.ocabj.net/gallery2/d/5377-2/IMG_5311-pp.jpg
Getting a no-wind zero @ 200 meters (~218 yards).

WOA saved me a lot of work. I didn't even have to move the front size base to get the no-wind zero. All I had to do was move the front sight post down one full revolution and hit the FSB and FSB screws with the Loctite 290.

6172crew
06-02-2008, 4:06 PM
Very nice rig, I went with the SPR WHite Oak barrel on my Mega setup. Works great and the price was right.:)

Pthfndr
06-02-2008, 4:16 PM
How do you like the Lapua 77 vs the Sierra 77?

I'm on my second WOP upper. I never got a T shirt :(

scfast
06-02-2008, 4:16 PM
nice upper gotta love white oak and some nice groups to...i guess it's not a surprise coming from you

Army GI
06-02-2008, 4:17 PM
Very nice, can't wait till I get mine!

ocabj
06-02-2008, 6:20 PM
How do you like the Lapua 77 vs the Sierra 77?

Those Lapua 77gr are the first one's I've shot. I've only tested 40 of those bullets, and only at 200. I hope to shoot/test them at 300 later this month. The only reason I'm playing around with the Lapua 77 (I have a 1000ct box) is because of the advertised BC of .405 on their spec sheet. If the BC is what they claim it to be, it's better than the .372 (.362 nominal) advertised by Sierra (77gr) and the .340 for the Nosler. I'm still using the Nosler's in my current/active competition SR upper, but I'll use the Lapua 77's with this new one.

I still need to test a 600 yard line load with this specific upper, but I'll most likely use the Berger 80VLD with my current/active 600 yard line load/recipe (24.0gr RL15, CCI BR4, Lapua Match brass). I bought a few boxes of the Berger 82BT, but I've had zero problems getting the VLD to shoot well.

Socal858
06-02-2008, 6:26 PM
looks great jon

tophatjones
06-02-2008, 7:47 PM
That is a thing of beauty. Nice work!

Pthfndr
06-02-2008, 7:52 PM
I use the same amount of RL15 for my 77 load. Have you noticed a difference with your RL15 load when using the BR4 vs the 7-1/2?

I normally use the BR4, but with primers sometimes being in short supply I snagged a box of the Rem primers last time I was at the range and haven't tried them yet.

eaglemike
06-02-2008, 8:10 PM
I'm new here - what's a SR?
Service Rifle...... In some competitions, there is a requirement for the rifle to look like, or be configured the same as, a military service rifle, either current US configuration, or the alternate, or back one generation (IIRC).

I'm sure one of the current competitors will be along soon with an accurate description. It's been a while since I competed.

I have a new WOA SPR (special purpose rifle) upper, and a heavy barrel target configuration is on the way.

all the best,

Mike

kj
06-02-2008, 8:11 PM
I'm new here - what's a SR?

Service Rifle - normally used for high power competition.

ocabj
06-02-2008, 9:25 PM
I use the same amount of RL15 for my 77 load. Have you noticed a difference with your RL15 load when using the BR4 vs the 7-1/2?

I normally use the BR4, but with primers sometimes being in short supply I snagged a box of the Rem primers last time I was at the range and haven't tried them yet.

I haven't done a chrono comparison between my current short line load (77gr Nosler, 24.0gr RL15, LC, CCI BR4) with the CCI BR4 and the Remington 7-1/2. I did chrono test my practice load which uses CCI 400 along side loads with the Remington 7-1/2 and the velocities were virtually the same.

Personally, I think the Remington 7-1/2 and the CCI 400 or BR4 will be interchangeable without any issues.

For this new upper (and any future barrels/uppers), I plan on developing all the loads using Remington 7-1/2 since I have a lot (and I mean a lot) because I bought a ton from Bass Pro Shop in Rancho when they had them priced at $17.95 per 1K brick (until they finally realized there was some sort of price mistake and raised them to ~$26ish). Also, it appears the Remington 7-1/2 is no longer in the shortage funk it hit last year when you couldn't find a Remington 7-1/2 anywhere. Add the fact that Remington 7-1/2s are widely considered the best primer for the AR and that they are less expensive than the CCI BR4, makes it the logical choice. The only reason I have been using the CCI BR4 is because the CCI BR4 was easier to obtain than the Remington 7-1/2 when I started shooting High Power back in 2006.

ocabj
06-02-2008, 9:30 PM
I did chrono test my practice load which uses CCI 400 along side loads with the Remington 7-1/2 and the velocities were virtually the same.

I found the notepad that I wrote the velocities down in my range cart:

24.0gr RL15, LC03, 75gr A-Max, CCI 400
1: 2850 (fps)
2: 2858
3: 2846
4: 2832
5: 2852

24.0gr RL15, LC03, 75gr A-Max, Remington 7-1/2
1: 2854 (fps)
2: 2851
3: 2843
4: 2845
5: 2853

ocabj
06-22-2008, 11:00 PM
Here's a snapshot of a 600 yard target:

http://www.ocabj.net/gallery2/d/5422-2/77_lapua_600.jpg

Sorry for the wrinkly target. They had crappy glue at Pendleton during the practice day. Anyway, I only brought 20 rounds of 600 yard ammo (80gr Berger VLD) so I decided to see if I could get a 600 yard elevation zero for the Lapua 77gr BTHP magazine length loaded ammo that I was testing for 200/300. This target shows that.

Lapua 77gr BTHP
24.0gr RL15
Lapua Match brass (virgin)
Remington 7-1/2
COL 2.260"

I was actually amazed at how well it held windage, especially since it is magazine length ammo (2.260" +/- .003"). I called the wide shots, and the wind was actually moving around 4-6 mph left to right, full value, variable. The Lapua 77gr shot well for me at 200 and it appears to be pretty decent for 600. Once I figured out a decent elevation setting for a 6 o'clock hold, the ammo held it's own.

If I ever decided to shoot NTIT, I would probably use the Lapua 77gr.