Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels and Ballistics


Reply

Lightweight 7mm Allen Magnum pics....

 
LinkBack Thread Tools Display Modes
  #1  
Old 08-13-2006, 02:40 PM
Official LRH Sponsor
 
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,793
Lightweight 7mm Allen Magnum pics....

Well, I got her assembled this morning but it is not ready to shoot yet. I have another two days to wait for the bedding to fully cure. No sense pushing things and have the bedding set back anywhere.

I designed this rifle as my Extreme Sporter model from APS. For a full size rifle, very light weight, alot of power and alot or reach. Here are a list of the componants I used in this rifle:

-Rem 700, Chrome Moly receiver, Fully accurized
-Sako extractor
-Gre Tan Striker assembly
-Factory trigger tuned to 1.75 lbs
-Holland Comp Recoil Lug
-Lilja SS #3 contour, 27" 7mm barrel 1-9" twist 6 groove
-Defensive Edge 1/2" thread triple port brake
-H-S Precision Sporter stock Forest Green with Black web
-H-S Precision DM system
-APS Skim bedding
-Defensive Edge flat black teflon coating
-Burris double dovetail two piece bases
-Burris low 30mm Signature rings
-Leupold Mk4 3.5-10x 40mm TMR FFP
-Harris BR bipod

As she sits in the pic I would guess it to weigh right at 8.5 lbs, maybe a hair more with the bipod. I could have really dropped the weight down more had I gone with a lighter scope then the Leuy Mk4 but it is plenty light enough to allow for the scope upgrade.

This is the new Front Focal plane Mk4 from Leupold. Finally they decided to come out with a FFP scope and I think this may be one of the best LR big game scopes out there. Only thing I think that would rivel is would be the same model in a 4.5-14x version.

With the 40mm objective you can keep the scope down close to the receiver. This rifle feels amazing to shoulder and the scope positioning is RIGHT there. I am already in love with this rifle and have not even shot it yet!!









This rifle has a barrel much lighter then what are common on my LR hunting rifle and that is because this will be my "go to" general purpose big game rifle. I designed it to be able to reach out 800 yards on big game but also to be able to be packed around all day in hard country all day.

I also wanted it to be usible in close cover as well as open country. This is the reason for the shorter then usual for me 27" barrel and lower powered scope at 3.5-10x. Personally, I feel this is plenty of power for taking high quality shots at deer size game and larger out to 1K yards easily. Some prefer much higher powered scopes but I have never been left wanting more then 10x even out to 1000 yards on deer size game. As I will be limiting my shooting to this range and probably much less with this rifle, the 3.5-10 is about as perfect as it gets for my needs and the FFP reticle makes it even more useful allowing me to use my reticle on any power as a reference point drop system.

I plan on using the 200 gr ULD RBBT in this rifle. In my 30" barreled rifles I loaded this bullet to 3200 fps comfortably. The 7mm AM has more to offer with a 30" barrel length but to ease things for the J-4 jacketed bullet I feel 3200 fps should be the limit.

As that is a comfortable load in the 30" barrels, I suspect I may well be able to reach the same velocity potential in the shorter 27" pipe running full pressures for the case design.

I will be very happy with 3100 to 3150 fps if that is what the result is. That velocity with the BC of this bullet will still stand alone ballistically in any 7mm crowd and pretty well most any caliber out there.

My only question is the 1-9 twist. This is an experiment to be honest to see what the slower twist and 6 groove rifling design will do with the J-4 jacketed bullets.

In some prelim testing with a Rock 1-8 5R barrel, this bullet was able to be driven to 3350 fps with fine accuracy. I am predicting the 6 groove Lilja will perform nearly the same and allow a bit more velocity potential with less stress to the bullet.

We will see.

Final goals, a 200 gr ULD RBBT at 3100-3200 fps in a 8.5 lb class rifle with 1000 yard reach. We will have to see what happens when the bullets fly.

If the 1-9 proves to be not enough to stablize the 200 gr ULD RBBT at long range, I have some 175 gr and 169.5 gr ULD RBBT 7mm bullets waiting in the wings to jump into the fight. I have no doubt about this twist with these two bullet weights.

Because of the relatively light barrel, I am not expecting or demanding 1/4 moa groups from this rifle. In all honesty, if I can get the ULD RBBT bullets to print in the 1/2 to 3/4 moa average range for three shots with this rifle I will be happy as can be. If I can get this level of consistancy at 100 yards, I am not worried what will happen at long range. Tend to get lower in moa measurement from 100 yards out anyway.

Hope to get the barrel broke in by end of next week and some range reports by next weekend. Back to work for now though [img]/ubbthreads/images/graemlins/grin.gif[/img]!!!

Kirby Allen(50)
__________________
Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
Reply With Quote
  #2  
Old 08-13-2006, 02:53 PM
Platinum Member
 
Join Date: Jun 2003
Location: Hermiston, Oregon
Posts: 2,005
Re: Lightweight 7mm Allen Magnum pics....

Good looking rifle Kirby. The chrome moly receiver is essentially a blued receiver, right? I suspect that rifle will still have great accuracy, and of course, some downrange punch to go with it. Cant wait to see how it shoots.
Reply With Quote
  #3  
Old 08-13-2006, 02:54 PM
Platinum Member
 
Join Date: Jun 2001
Location: Potomac River
Posts: 5,057
Re: Lightweight 7mm Allen Magnum pics....

Very nice looking stock.
You should have added a splash of orange though. [img]/ubbthreads/images/graemlins/grin.gif[/img]

Be interesting to see what powder gives the best results in the shorter barrel.
__________________
The Smokin Fur Rifle Club
Reply With Quote
  #4  
Old 08-13-2006, 02:55 PM
Platinum Member
 
Join Date: Jun 2005
Location: Yakima, Washington
Posts: 3,833
Re: Lightweight 7mm Allen Magnum pics....

Kirby:

What can I saw but....SWEET [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/shocked.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img]

Can you spell Ultimate Long Range Big Game Packing Rifle??? [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img] Talk about a portable long range thumper, I think you hit it right on the nose. I like the color combo. As usual, it looks like Shawn did another fine job on the coating. Looks fitting on a true big game hunting rifle. Kinda like a wolf in sheeps clothing. Looks can be deceiving and if viewed quickly or from a distance, first impressions would be deceiving as to what this one is fully capable of doing.

That thing just looks like a premier packing type hunting rifle without even firing a shot. Can't wait to hear how the testing goes. Keep us posted. Should be some interesting reading. Kind of strange seeing an Allen Magnum in a shorter barrel but I know it'll work. The round and the bullets will get the job done at any range you plan on using this thing at, and even longer if needed.

Whitetails in the brush to mulies and speed goats at 1000 yards plus. What more could you ask for?? [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/smile.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img]
__________________
ss7mm
Reply With Quote
  #5  
Old 08-13-2006, 03:23 PM
Official LRH Sponsor
 
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,793
Re: Lightweight 7mm Allen Magnum pics....

RemMan,

I only use chrome moly(blued) receivers when I build a 7mm AM on a Rem 700. Steel is more resistant to bolt lug set back then stainless.

I am sure she will be a shooter with some combination of load!!

Kirby Allen(50)
__________________
Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
Reply With Quote
  #6  
Old 08-13-2006, 03:24 PM
Official LRH Sponsor
 
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,793
Re: Lightweight 7mm Allen Magnum pics....

Buffalobob,

Where ever did you get the idea to put orange in this color pattern [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img]!!!

Kirby Allen(50)
__________________
Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
Reply With Quote
  #7  
Old 08-13-2006, 03:27 PM
Official LRH Sponsor
 
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,793
Re: Lightweight 7mm Allen Magnum pics....

SS7mm,

I hate to say it but this little pill maybe my primary hunting rifle but this fall in Idaho with Shawn she will be playing second role, hopefully!! That is if I get a BAT receiver in here soon!!

When I thought up how I wanted to build the rifle I wanted a one rifle for everything type design. From pronghorns to moose, from 100 to 800 yards and from sitting in stands to walking for miles I wanted a one rifle for everything type deal.

I think this one will come close, if it shoots!!

Kirby Allen(50)

PS. I sent you a couple e-mails, did you get them? did not get any response from you on them??? Keep me posted.
__________________
Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Lightweight 7mm Allen Magnum pics....
Thread Thread Starter Forum Replies Last Post
ALLEN PRECISION 510 Allen Magnum for sale Fiftydriver Guns For Sale 4 01-05-2012 10:35 PM
Original Allen Precision 375 Allen Magnum XHS for sale.... Fiftydriver Guns For Sale 10 02-02-2010 01:55 AM
More practice with the lightweight 7mm Allen Mag.. Fiftydriver Rifles, Bullets, Barrels and Ballistics 13 01-13-2010 07:39 AM
Promised pics of the 510 Allen Magnum... Fiftydriver Rifles, Bullets, Barrels and Ballistics 23 02-28-2008 04:19 PM
375 Allen Magnum first long range accuracy test, 510 Allen Magnum gets to play too... Fiftydriver Rifles, Bullets, Barrels and Ballistics 9 02-20-2008 08:42 PM

Current Poll
Do you watch outdoor shows live or by recording them?
Always recorded - 13.30%
110 Votes
Mostly recorded - 24.18%
200 Votes
Sometimes recorded - 14.51%
120 Votes
Rarely or never recorded - 48.00%
397 Votes
Total Votes: 827
You may not vote on this poll.

All times are GMT -5. The time now is 10:39 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC