Home Forums Reloading Big Game Rifles 30-378 wby?

I'm sure Dale Jr can drive most anything and there are those who can't drive [bleep].

Same goes the rifle.

Have noticed a direct to correlation to practice equating "luck"..........................

Alot of good remarks about them.
If driving 180's or less, IMO 300 RUM with a custom barrel is a better choice.

Concerning my Accumark.
Quite accurate, after I bedded it.
Barrel cleaned up great, nice rifle, tight smooth action, concentric tight chamber, good all around.
106gr Retumbo, 200 Accubond performed well enough to require a more stable platform.

After I fitted it with a Swirly Tooley MBR stock, I let a buddy shoot it at 1K match, I think he did around 17inches with it. (About 18 rounds in 8 minutes) Cleaned up OK no problems. I never shot a match with the original barrel but did some practice 10 shot groups 12-14 inches at 1K (8 in vertical). Again cleaned up OK.

Same barrel took a few chucks between 400 and 1200 yards. (See video coming some year soon)
Took a couple deer at some distance as well.

When I made up my mind I wanted new barrel, I did some how many licks does it take tests. During one sitting I shot 50 rounds of the 200accubond retumbo load. Busting clays at 1K. Lots of fun. Not speed shooting but steady reading wind and whatnot. Took awhile to clean but it came clean.

Heat, RL25 and 220mks was finally the demise of my factory barrel at around the 800 round mark.
Had a decent load of RL25 and 220 Matchkings and was letting other guys try it out. We were busting clays and steel at 1K, until around round 27 somebody said missed the gong 3 foot left. Um shoot again. 2 foot low. Let me see that, bang, 2 foot right. Uhhhh we're done. Took it home, carbon from hell, never could get it out.

Well good, now I'm getting a fat barrel. Going to make it work for the 1K matches. Now sports a 29 inch 10 twist. Worked up loads with 240 MK. Currently at 107.5 H50BMG for 3150. It shoots pretty flat. Decent 3 shot groups at 1100 and 1300. I shot it in a 1K fun shoot, scored fairly well. 5 shot 500 yard targets under 3 inches. Tried it in a 1K match. Didn't fair too well. Last three made it big.

Brass can take 6-7 ejector mark circles on them until the primer pockets no longer do their job. No signs of case head seperation....unlike my Rem700 300 Weatherby.

Trigger has not been changed yet.

Wore one extractor out. (at 1000 rounds)

Will get back to playing with it some more. But basically will only be tuning 5 shot groups from here on out. Too much powder for comp, just like everybody said....But I killed a deer with the new barrel last year, just shy of a half mile. Works good for that.

Good cartridge and serves a purpose but I think its potential can not be truly realized until about 1200 yards....

What were your velocities with the 200 gr Accubond and Retumbo.

3230 average <20 fps ES with a Chrony 10 feet from muzzle.

Not too shabby!

Well with retumbo I got 3500 fps with the 180 Accubond
and 3330 fps with the 200 gr Accubond.

Hi Pop and Happy New Year to you and family. Sounds like your busy working up loads for your new Xmas gift. You mentioned blasting the 200 grain bullets at over Mach 5, but what is the accuracy. I know the 30-378 can really rock but some guys say that finding the accuracy load can be frustrating in this caliber. How are they grouping? I've looked at getting one of these 30-378 but I will sit on the fence for a while longer and see if you can find the accuracy load if possible. I'm sure your other canons were a cake walk to accuracy compared with what you are now facing. Thanks for the info

It did an honest 1.25" at 100 yards but it double grouped so I skim bedded it in the recoil lug area. Way too much movement of action in the stock! Hence the factory wanting you to torque stock screws at 65 inch/lbs. They are the only thing holding the action in the stock in one place! Not anymore!

Do you let the barrel cool after each shot or wait until you <img src="/ubbthreads/images/graemlins/confused.gif" alt="" />can't keep your hand on the barrel before cooling? How many dollars bills can you slide under the barrel all the way to the fastening bolts on the action? I've often wondered if this bedding process is really worth it? I don't know if I have been misinformed but one old fella told me that I shouldn't be able to slide more than 2 stacked dollar bills between the barrel and the stock, 3 becoming snug? Is this false or true? What criteria do you use?

30-378 Wby/180-TSX/RL-25-105gr/Fed 215M
BC:552/Vel.3341/COL:3.770/Turret Zero/Level-0
Range Velocity Energy Drop Drop Windage
(yards) (ft/sec) (ft-lbs) (inches) (moa) (inches)
0 3341.0 4461.1 -1.5 --- -0.0
100 3150.9 3967.9 1.0 1.0 0.5
200 2968.6 3522.1 -0.0 -0.0 1.9
300 2793.6 3119.0 -5.0 -1.6 4.5
400 2625.4 2754.7 -14.4 -3.4 8.2
500 2463.7 2426.0 -28.8 -5.5 13.1
600 2308.5 2129.9 -49.0 -7.8 19.5
700 2158.9 1862.8 -75.8 -10.3 27.3
800 2014.4 1621.7 -110.0 -13.1 36.9
900 1875.9 1406.4 -152.7 -16.2 48.2
1000 1744.0 1215.6 -205.4 -19.6 61.6

I shoot 3 shot groups only. Way too much heat to go to five. Barrel is freefloated (2 dollar billed easy in-out.

.552 BC for the 180 TSX? Yeah right! BC is nowhere near that buddy! <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />

I got your buddy hangin!!!

What is your problem man? Why the attack?

Look here:


http://www.barnesbullets.com/prodtsx_new2006.php

all I am saying is that Barnes re-evaluated their BC figures and it is no longer near .552 for the 180 TSX.

I don't know why I didn't get:

"all I am saying is that Barnes re-evaluated their BC figures and it is no longer near .552 for the 180 TSX."
out of:
".552 BC for the 180 TSX? Yeah right! BC is nowhere near that buddy! <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />"

Man up & buy the powder burner!!! <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />