.284 New Build Question.....

[brxbrad]

I'm in the process of a .284 Winchester build. I've been shooting f-Class and reloading for years. However this one is new to me and I'm asking for opinions. This will be my 1000yd gun. I already have one for 600yd.
It will be built using my existing Savage 110 Action. I will be using 6.5-284 Lapua Brass and necking up. Finished load diameter at neck is approx .310 using the Berger Vld 180gr without turning the neck. Neck Turning may occur......I'm looking at approx 58opps 53 ....gr of H4350 an LRM primers. Probably running somewhere between 28-2900 fps.

Question(s): What is the best chamber for this type of load or application? ie. Demensions, free bore, neck, etc.....Standard or What?
Oh, I'll probably be going with a Kreiger 5R barrel.....
I'm not looking to do anything fancy.....Just shoot 1000yds well..

 

[dragman]

If you wanna shoot the 180's I suggest .190 freebore and just order it as a no turn neck if you don't wanna turn necks. 58 grains of H4350??? it's not gonna end well IMHO.

 

[Steve Blair]

58 grains of H4350??? it's not gonna end well IMHO.

[br]
Yes, I'm gonna guess a little over 3100 for that load. Brass life might not be good.

 

[TonyR]

58 grains of H4350??? it's not gonna end well IMHO.

[br]
Yes, I'm gonna guess a little over 3100 for that load. Brass life might not be good.

Poor brass life might be the best case outcome with that load! I had one lot of H4350 and one 7mm RSAUM barrel that shot well with 58 grains but I also had one lot of brass that lasted 1 firing so I wouldn't recommend anything close with a 284 Win case. Seems like 2830 fps or so is about right for the 180 Hybrid and a 284 Win case. It takes between 51.5 and 53 grains with my Shehane and a 30 inch barrel. I think the guys using a straight 284 Win use 2 or 3 grains less with similar results. If you want to go faster than that, Steve can tell you how to do it safely with 284 Shehane case and something other than H4350.

 

[brxbrad]

Oops....Typo....Sorry.

I'm was thinking more like 53gr tops.

Keep them coming. I'll take all the help I can get.
Whats your favorite barrel manufacture...? Favorite specs if I don't mind turning brass?
Thanks
Brad

 

[TonyR]

My Shehane reamer print is included with the 7mm cartridge guide on this website. It is perfect for the 180 Hybrids and Lapua brass necked up. 0.313 inch chamber neck and 0.310 loaded neck but I have also used 0.309 and 0.311 inches on occasion just to see what would happen. Just reduce the diameter at the body/ shoulder junction from 0.485 to 0.475 and you have a very nice straight 284 Win reamer for Lapua brass. In my own experience, I use IMR7828SSC with the 284 Shehane when I want to go fast and I have seen close to 3000 fps with it but the gun liked to shoot at 2900 fps so that is where I shot it. Others have had good results with H4831SC but I didn't. For some reason, the Hybrids with H4350 at about 2830 fps have been a very stable and higly successful combination for myself and others with both the Shehane and the straight 284 Win and it is my favorite.

 

[Keith Glasscock]

Tony,

What barrel length are you running with your Shehane?

 

[TonyR]

Tony,

What barrel length are you running with your Shehane?

Lately, I've been using 30 inches but I'll do 32 inches with the next one if I do another. The 30 inch has worked well with H4350 and the 180 Hybrids because the load is very stable and can be loaded well ahead of a match then shipped somewhere for the international competitions. If I have the opportunity to load closer to match time and check the tune under similar conditions, I like the slower powders and higher velocities with longer barrels.

 

[DennisH]

Oh, I'll probably be going with a Kreiger 5R barrel.....

I hope you already have your barrel, Kreiger like the rest of us are way behind.

If you wanna shoot the 180's I suggest .190 freebore and just order it as a no turn neck if you don't wanna turn necks

The above is good information.

I have built several 284's, one just last week. Breaking it in, the barrel was cloverleafing on the first group. 2,925fps seems to be the node no matter what barrel you are using. I have no trouble getting these speeds with RL17 and 180's.

I love shooting my 284. At 600 they are very accurate.

Let me know if you need more information.

Dennis

 

[Steve Blair]

2,925fps seems to be the node no matter what barrel you are using. I have no trouble getting these speeds with RL17 and 180's.

[br]
Not always correct. Most straight .284 shooters to whom I've spoken at national events run in the 2830-2850 range with 180 Hybrids. Most also use one of the two powders Tony mentioned, H4350 or H4831SC. Double base powders can bite very hard when you least expect it. My Shehane loads usually tune around 2940 from 32" barrels with H4831SC but one Krieger ran at 2965 with .2 grains less powder than the previous barrel. If you use a tuner, all that means little for accuracy and the focus becomes velocity extreme spread and load tolerance window.

 

[338 Mollett]

I agree with the velocity numbers Steve listed but those are with strong actions I don't think a rem action can hold that just my 2 cents.

 

[brxbrad]

Thanks for the information. This is the kind of stuff I'm looking for.

What are your preferences on Barrel Mfg. and design.
I'm leaning toward Kreiger 5R 1:9.....

 

[TonyR]

Thanks for the information. This is the kind of stuff I'm looking for.

What are your preferences on Barrel Mfg. and design.
I'm leaning toward Kreiger 5R 1:9.....

I have had excellent results with both Krieger and Bartlein 5R barrels. You can't go wrong with either. Based on my experience over the last two years, I would give a slight edge to the Bartleins in that they have been easier to break-in and clean and they have been very consistent from barrel to barrel. I have used them on my 7/300WSM, 7mmRSAUM and 284 Shehane with comparable results. Grizzly also keeps a pretty good supply of Bartleins on hand and their service has been outstanding. But my Krieger 5Rs have also been excellent.

 

[338 Mollett]

Good advice on the barrels I shoot the same. .190 on the freebore sets up well for the bergers .If they don't shoot, throat the chamber out a little longer and try the sierra 180's.

 

[lrgoodger]

If you get the 5R barrel, be sure you have it chambered by someone who knows how to avoid canted land chatter. I had two barrels done in the last year by two different, well known gunsmiths and both have 5 lobed chambers from the reamer riding up the side of the canted lands. Search on Gordy Gritters if you have not heard of him, or call him on the phone and talk to him about it. He seems to be the leading expert on the issue. You can find him here.

www.gordysgunsmithshop.com

 

[brxbrad]

You guys have been great help.

I'll be ordering a Bartlein Barrel 7mm 5R x 32" Finished, .277/.284 Bore/Groove x 1-9 Twist - Taper Barrel. 1.25 to 1.0 taper from Grizzly within a week. Just trying to save up a little more $$.
http://www.grizzly.com/products/7mm-5R-x-32-Finished-277-284-Bore-Groove-x-1-9-Twist-Taper-Barrel/T10231

I've spoke with several people and the general consensus is that it's a toss up on accuracy and barrel life based on manufacture. With the wait on Kreiger being 6 mos +/- and 3 mos for a good gun smith and wanting to use it next season, ill be going with Bartlein.
I could use a reamer print with .190 freebore to send to my Smitty. I want no mistakes or misscommunications.

 

[Steve Blair]

With the wait on Kreiger being 6 mos +/- and 3 mos for a good gun smith and wanting to use it next season, ill be going with Bartlein.

[br]
A good choice but our season is just starting. [br]
CA LR in early November, AZ LR in mid November and AZ Palma in early December, followed by the Berger SW LR Nats in early February.

 

[brxbrad]

Getting ready to order Bartlein Barrel 7mm 5R x 32" Finished, .277/.284 Bore/Groove x 1-9 Twist - Taper Barrel but cant decide on 32" finished or 30" finished. What are, if any, advantages or disadvantages?
Decisions......decisions.....

Thanks
Brad

 

[Erik Cortina]

Getting ready to order Bartlein Barrel 7mm 5R x 32" Finished, .277/.284 Bore/Groove x 1-9 Twist - Taper Barrel but cant decide on 32" finished or 30" finished. What are, if any, advantages or disadvantages?
Decisions......decisions.....

Thanks
Brad

Order a 32" since it can also be a 30", the reverse is not true.

 

[Steve Blair]

The main advantage is better tracking by putting a little more weight in front. I use straight Ø1.25" barrels on both my .284 Shehane and .300 WSM, 32" and 34", respectively.