.338 tejas - 5 shot group - .4"

[shepardsonp]

Just found a great load for my .338 Tejas.

95g H1000
CCI 250 Primer
Berger 300 VLD
.4" FIVE SHOT GROUP at 100 yards.
2835 FPS

.338 Tejas is a wildcat built on the .300 RUM case necked up to .338 with a 52 degree shoulder vs. a 29 degree on the RUM case.

Shot a cow elk this past weekend on a depredation hunt at 400 yards (layup shot) and she didn't take that very well.

 

[Rosco1]

Built by Wasatch?

 

[meatyrem]

You wouldn't happen to have a pic of the round would you. Kinda curious to see what that round looks like with a 52 deg shoulder.

 

[ZSteinle]

You wouldn't happen to have a pic of the round would you. Kinda curious to see what that round looks like with a 52 deg shoulder.

+1 to that

 

[shepardsonp]

Actually...

The rifle started out at Wasatch Precision Arms but Brad Stair finished it for me on the side since he and the 2 owners of Wasatch Precision Arms had a major falling out. Brad was the only guy at WPA that I would let touch my rifle as the other 2 owners wouldn't give me the time of day when I would stop in the shop. Neither one of them are gunsmiths or even machinists by trade as far as I know - might want to check. Now that Brad is no longer there, I have no idea if WPA is even open for business. I do know, they won't get mine!

Brad is now at a new shop in Ogden called Cross Canyon Arms (801) 731-0172. I saw Brad at the SHOT show last week in Las Vegas. He has 125 barrels in stock and close to 50 McMillan stocks just waiting for a new home. Brad has a team of 35 machinists behind him and the plan is to start making high-quality long-range guns (and soon actions) - like he has been doing for over 30 years.

Cross Canyon Arm's web site will be up soon!

gun)

 

[shepardsonp]

5 Shot group

http://i1201.photobucket.com/albums/bb347/Paul_Shepardson/IMG_0011.jpg

.338 Tejas Fire formed case vs. .330 RUM case

http://i1201.photobucket.com/albums/bb347/Paul_Shepardson/P1270009.jpg

 

[Rosco1]

I didn't know Brad had split from WPA...good to know.

 

[BH Hunter]

I think I may have seen this gun..In Idaho maybe?

 

[Hicks]

Curious, what advantage does the steep shoulder offer? Just more powder? It looks like head spacing would be rock solid.

Hicks

 

[shepardsonp]

You absolutely saw this in Idaho!! I am heading back there this August to do it all again as it was so much fun!!! this rifle is getting fitted to a new McMillan A-5 stock right now. I had it teflon coated in a dark grey which looks really cool.

I will also have a second .338 Tejas with a full 31" bull barrel, A-5 Stock, NightForce 5.5x22x56mm as a backup!!!

Can you make the trip????

 

[shepardsonp]

The 50 degree shoulder (not 52 degree as i mentioned) does give you more powder capacity for sure. I did a case volume test with water and it held about 6 grains of water more than the standard .300 RUM case (not the .338 RUM as it is a smaller case).

Regarding headspace, I am not a gunsmith so I can't really comment on that.

 

[338 bruce]

My guess would be that the steep shoulder angles the hotest part of the flame into the brass instead of the throat resulting in longer barrel life.

 

[groper]

gees you must have a really slow barrel to only get 2835fps from 95gr H1000 in an improved case...?

I was getting 2950+fps from 93grains H1000 in a std 338-300RUM chamber, 30" tube... the accuracy load was down around 89grains for 2850fps...

How long is your barrel?

 

[shepardsonp]

yes, I had the barrel speed selector set to the lowest setting possible for accuracy purposes. I actually lapped the barrel in reverse (muzzle to chamber) to ensure the bullet got the most friction to apply as much spin as possible. It decreases your velocity a bit but increases accuracy significantly. Testing was done on a 29.5" barrel and the break adds a bit more length but doesn't have an effect on velocity.

Actually just looked at my log book and I was getting 2835 fps on 94g of H1000 using the 300g Sierra. Don't have the chronograph data on the 95g of H1000 available. I was using a PVR-22 chronograph for my testing. What chrony model did you use?

I would agree that my equipment is not as good or as fast as yours. I would also venture to bet that your diesel truck gets better fuel economy than mine and your dad can whip my dad.

The net of the story is that I posted this thread because I enjoy shooting and wanted to share my data. If I wanted to get into a "my stuff is better than your stuff" discussion, I wouldn't have wasted my time posting it.