New build, 7mm-08 or 284 win on remington 700 SA?

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cody182005

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Good day guys looking for input on building a 284 win on a remington 700 short action. Primarily prone target shooting, maybe take hunting once or twice a year. (not concerned with weight)

My plan is to run a chassis and feed from aics/accurate mags with plate removed, as well as a minor modification to the bottom of the action to allow me to seat out to close to 2.950"
I currently have a 7mm Heavy varmint 1:8.5 twist 5R bartlein barrel that i plan to have finished somewhere between 24-28 inches.
Likely looking at using 168 Berger VLDs or the new hornady 162 gr ELDs. Possibly heavier bullets for a 284, depending on the room in the mag.

Any input would be appreciated, especially anyone with experience in these calibres or have tried any of the modifications i mentioned.

Thanks
 
Personally, I like the idea of a .284 on a short action for a hunting rifle. I have a Model 70 that I just may do this with. It's a .243 presently, and I think I'm going to have to open the feed rails a bit to get the .284 case through it nicer than it does now.

You're going to get a lot of recommendations against using a short action for .284 due to powder space crowding and it is a legitimate claim. But unless you're going to be using long bullets and trying to maximize velocities, you shouldn't suffer too much. You'll get more punch out of a "choked" .284 than you will with the 7-08, I'm sure.

Two articles with very good information below:

http://www.6mmbr.com/gunweek095.html
http://www.accurateshooter.com/cartridge-guides/7mm/

Rooster
 
Get some 284 or 6.5-284 brass and stuff them into the mag(s) you want to use. It will answer this question very quickly.

Beyond that, eenie meenie.. both work and at this bullet weight, not a huge difference between the two.

Jerry
 
Thanks. I've read both those links as well. I'm leaning more towards the 7-08 with the slightly shorter case being a little more forgiving and similar dimensions of 308 which the mags are designed for. Would i see much benefit(velocity) by using the small primer palma 308 lapua brass and necking it down? I really like the fact that lapua now makes 7-08 brass.
 
I presently own and hunt with a modified Win Mod 70 that was born a 30/06, and now with a Douglas premium barrel in 284. Why long action and not short action? Well I guess it was a goal to be able to produce the velocity of my 7RM with less powder. I was able to achieve this (all most) by being able to seat my 140 gr Sierra Game King out to a cartridge overall length of 3.050 and still have at least .290 seated in the case with no power compaction. Now this all depends on your particular guns free bore to be able to seat out beyond saami, but that is easily corrected when a new barrel is installed and a quality gunsmith is asked to perform the procedure done to be able to seat long. I did this as I am a long range hunter and have produced many long range shots cleanly. The 284 is my go to gun for hunting.
 
I have recently gone through the same scenario. I went with 7-08 shilen match barrel 1-8 twist. I am still doing load development, but have been getting good results with 162 eld over rl 17, in IVI 308 brass sized to 7-08. Getting 2700+ fps. And that's with a OAL at 2.920 "
 
uncledillers said:
I have recently gone through the same scenario. I went with 7-08 shilen match barrel 1-8 twist. I am still doing load development, but have been getting good results with 162 eld over rl 17, in IVI 308 brass sized to 7-08. Getting 2700+ fps. And that's with a OAL at 2.920 "
Click to expand...

Awesome! What magazine are you using and what length barrel is giving you that velocity?
 
For the parts you have and what you want to do the 7mm-08 makes a lot of sense to me. I am a huge fan of the 284 win, but to really maximize it's potential I believe you need a long action.
 
CanuckR said:
What about 7mm08AI? You'll get a bit more jam. And it should still run out of the AICS mags just fine.
Click to expand...

That is something i have been pondering as well. From what i have read (in forums) the general consensus is that there's not enough velocity gain without compromising brass life. If anyone here has one let me know if its worth while.
 
uncledillers said:
I have recently gone through the same scenario. I went with 7-08 shilen match barrel 1-8 twist. I am still doing load development, but have been getting good results with 162 eld over rl 17, in IVI 308 brass sized to 7-08. Getting 2700+ fps. And that's with a OAL at 2.920 "
Click to expand...

I'd think it should be faster then that with reloader 17. I'm almost at 2700 with h4350 and 162 eldx in a 22" barrel. No pressure signs either

cody182005 said:
That is something i have been pondering as well. From what i have read (in forums) the general consensus is that there's not enough velocity gain without compromising brass life. If anyone here has one let me know if its worth while.
Click to expand...

I have thought about it and even have a die set for an improved 7mm-08 but from all that I have read you only gain 30-50fps unless you really bump the pressure up.
 
cody182005 said:
That is something i have been pondering as well. From what i have read (in forums) the general consensus is that there's not enough velocity gain without compromising brass life. If anyone here has one let me know if its worth while.
Click to expand...

No you're right you probably don't gain a whole lot. But I don't think brass life should be an issue. I ran a 243AI and brass seemed to live for ever. Generally people like the AI versions for less brass trimming.
 
I'd run the 7-08ai with the 162s and reloader 17. 17 is made of unicorn horns and mystically gives you more velocity with next to no pressure, i was going to build myself a 7-08ai but ended up selling the parts before I built the gun. I'll run that reamer one of these days.
 
Robmcleod82 said:
I'd run the 7-08ai with the 162s and reloader 17. 17 is made of unicorn horns and mystically gives you more velocity with next to no pressure, i was going to build myself a 7-08ai but ended up selling the parts before I built the gun. I'll run that reamer one of these days.
Click to expand...

alot of us tested the Re17 powder when it first came out... I sold off my partially used can. Speed is of little relevance if you can't hit your target.

YMMV.

Jerry
 
Thanks for all the input. I try to stick to temp insensitive powders where i can. I have a pretty good stash of varget so hopefully that works ok of not i will probably try something like h4350
 
I tested out to 500m which is 1/2 the distance I compete at... it has some good qualities and some not so good qualities for what I need in competition.

Maybe it works great for others.... that is fantastic. Set your priorities and your goals.. if the components meet them, then you have the right combination\\

F class competitors have some very demanding needs today... I haven't met any shooter that uses a Reloader powder. not saying no one does, just no one I have talked to in Canada or the US.

But believe me, we test EVERY new powder (or any component) that might offer an edge.... and if there is a benefit, you better believe we are all over it.

Jerry
 
So Jerry, were you finding the RE 17 inconsistent in velocity? or just not able to get a load with except-able accuracy? Also What powders would you be looking to test in the describe load, 162 gn 7mm in 7-08? Always interested in different powders if there is something to gain.
 
uncledillers said:
So Jerry, were you finding the RE 17 inconsistent in velocity? or just not able to get a load with except-able accuracy? Also What powders would you be looking to test in the describe load, 162 gn 7mm in 7-08? Always interested in different powders if there is something to gain.
Click to expand...

From everything I have read about 17 is that speed is great accuracy is left behind.

I load 139gr and 162gr with h4350. Gives me good speeds and good accuracy.
 
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