Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics


Reply

1500yd plus pdog results

 
LinkBack Thread Tools Display Modes
  #8  
Old 10-17-2005, 08:21 PM
Official LRH Sponsor
 
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,796
Re: 1500yd plus pdog results

Lerch and BJ,

You guys are going to kill me but I guess this is as good a way as any to give the latest developments from the APS/Wildcat thinktank(This generally results in spending more money for Richard and me [img]/ubbthreads/images/graemlins/grin.gif[/img]).

Well, RIchard will be hard at it build a new .277" ULD RBBT which I believe he settled on the 185 gr weight.

As you both know I am building a 270 AM for out good Canadian friend to be a 1K whitetail hammer. Well, After the 7mm AM was released, Richard really started to like the performance of that round based on the Lapua case(I think you can probably tell where this is going).

After a couple phone conversations, Richard convinced me to give him what he wanted.

The reamer has been on order for 2 to 3 weeks, and the new cartridge will be called the 277 Allen Mag. Basically a 7mm AM necked down to 277 with no other changes.

Believe me this is in no way an attempt to make the 270 Allen Mag obsolete as it will certainly not do that. This is just another step in pushing the performance envelope, espeically with the new 185 gr ULD RBBT coming on line this winter.

I will be rechambering my Savage based 270 AM to the new 277 Allen Mag as an experiment to see how the Savage receiver will handle the Lapua case head size. After testing I will decide if the Savage can be used as a platform for the 277 Allen Mag.

I am not really sure what increase in performance there will be over the 270 Allen Mag. All I know is that the 7mm Allen Mag will hit 3500 fps with a 160 gr Accubond in a 26" barrel and the 7mm and 270 are very similiar in bore size.

When you guys burn your 270 AM barrels out this will hopefully be an option if you feel you need a bit more performance. The real benefit of the 277 AM over the 270 AM will be longer case life at top pressures and better brass quality.

It will not have the ease of loading that the 270 AM has though. Both will be great rounds and both will say in the AM line up.

Good Shooting!!

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
  #9  
Old 10-17-2005, 08:45 PM
SPONSOR
 
Join Date: Dec 2004
Location: El Reno, OK
Posts: 1,930
Re: 1500yd plus pdog results

Kirby,

No, I'm not going to kill you......but my wife may!!!

Just how much of a pain in the backside is it to neck down from .338" to .277"? Would there be significantly less bbl life in the 277 AM vs the 270 AM?

BTW, I like the line "...if you feel you need a bit more performance." I'm not sure we NEED the performance we have now. I can't even begin to fathom what both of these rounds will do w/that 185 gr pill!!!!
Reply With Quote
  #10  
Old 10-17-2005, 09:24 PM
Platinum Member
 
Join Date: Jun 2005
Location: Yakima, Washington
Posts: 3,833
Re: 1500yd plus pdog results

B. J. :

There you go. You had talked about a new gun and this one sounds like a great candidate. The way you guys are going after the p.d.’s those barrels will need to be replaced soon anyway.

The Lapua brass alone would be worth it and it’s a piece of cake to neck them down with a comp bushing neck sizing die and the right set of bushings.

Didn’t you say something about getting your upcoming arrival a gun for Christmas? Maybe it should be a 277 Allen Magnum…………… [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img]
__________________
ss7mm
Reply With Quote
  #11  
Old 10-17-2005, 09:51 PM
Platinum Member
 
Join Date: Feb 2005
Location: Nevada
Posts: 2,782
Re: 1500yd plus pdog results

Fiftydriver,
You don't suffer from anything like high blood pressure or cholesterol, or diabetes or something, do you? As fast as you're coming up with all these new ideas you're not helping us. I think my blood pressure just went up... [img]/ubbthreads/images/graemlins/smile.gif[/img]
Seriously now , would you have to anneal before and after fire forming? I mean you'd have to go from 338 to 30 then to 7mm then to 277... Right? [img]/ubbthreads/images/graemlins/confused.gif[/img]
__________________
-----------------------------

-----------------------------
HEBREWS 13:8
Jesus Christ the same yesterday, and to day, and for ever.

Our Lord Jesus said that as it was in the days of Noah and
also as it was in the days of Lot so it shall be in the days...
It's happening again!!! God sent to us His prophet, and His Word
to this generation and we once more are rejecting it as was prophesied!!!

---> As promised, God Sent His Prophet to us!
Reply With Quote
  #12  
Old 10-17-2005, 10:32 PM
Official LRH Sponsor
 
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,796
Re: 1500yd plus pdog results

BJ,

I have alot of fine women out there distaining me for mo good reason, but whatever keeps the food on the table I guess and the bullets in the air [img]/ubbthreads/images/graemlins/grin.gif[/img]!!!

Actually, as SS7mm has correctly stated, with the purchase of a Redding 338 Lapua Comp Bushing sizing die and a selection of bushings, the 277 as well as the 7mm AM are extremely easy to form and using this die, neck run outs are suprisingly low as well, even going from 338 to 270 or 7mm.

Certainly an added cost but its a one time deal and the Lapua case will last longer then the RUMs will with top loadings. I have yet to loosen a 7mm AM primer pocket and thats with topping 3500 fps with a 160 gr Accubond and reaching 3200 fps with the 200 gr ULD RBBT in only 26" of barrel.

The RUM cases are relatively easy to loosen a primer pocket on if you run the pressure to high.

We could also easily set back your current barrel when the throat gets toasted and rechamber to the 277 AM as well. Keep that in mind, you do have a full 30"s of barrel to play with!!!.

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
  #13  
Old 10-17-2005, 10:50 PM
Official LRH Sponsor
 
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,796
Re: 1500yd plus pdog results

Eaglet,

I don't sleep much my friend, I am either working in the shop(currently thats about all I have been doing), getting my personal rifles ready for the upcoming season or working on R&D for the new AMs on the way.

So far its been alot of fun with some frustrations but nothing out of the ordinary for this type of playing around!!!

The 338 Lapua cases, either Norma or Lapua, have a very good neck and shoulder anneal from the factory. As such they are easily necked down to 270 and 7mm with no problems. They can also be loaded and fireformed without any annealing needed.

After then have been fireformed, then I recommend reannealing the neck and shoulder of the case. After that you will get 5 to 6 firings before annealing is needed again.

It has been a busy last 1/2 year and it will only get busier from here out I suspect. Thats good though!!!

I will also drop another little hint. I am currently working on a prototype rifle based on a Ruger M77 MkII receiver. The wildcat it is chambered in is of 6.5mm caliber and is about as much performance as one can fit into a standard length(3.400" OAL) receiver.

Interestingly enough, This Ruger is a Magnum receiver and no modifications have been made to the action at all except to releive the extractor claw a bit. Feeding has been so far picture perfect for a CRF rifle and accuracy has been in the 3/4 moa with fireforming loads using the 140 gr Speer seated a solid 0.100" off the lands for a pressure cushion.

I just finished the barrel break in today doing it around customers projects that I am working on. It has a Lilja #6 contour, 1-8 twist 26" stainless barrel with a Holland QD brake on the stainless Ruger M77 MkII receiver and all that is sitting in the Ruger factory Laminated wood stock. Its quite an attactive medium weight sporter rifle.

I just loaded up the first test loads using the 125 gr Partition over AA8700 powder.

The starting loads begin at 85.0 gr and go up to 95.0 gr of 8700. At 95.0 gr the case is loaded to I would say 99 to 100% load density with this bullet seated to 3.400" OAL which fits in the mag box.

Basically the entire reason for this experiment was that I needed a lighter, faster handling rifle as a second rifle to take to Canada next month. A gunsmith laying in bed at night with his mind running is a dangerous, and often expensive situation for sure [img]/ubbthreads/images/graemlins/grin.gif[/img]!!!

I will be testing this rifle out and if it proves up to my standards I will release an entire line of this size rounds, 257, 6.5 and 270.

The idea is to get as much performance as possible in a true standard length receiver. For the Rem 700 and true magnum length receivers the Allen Magnums of course the the chamberings of choice but I figured there were alot of Ruger and Win 70 standard length rifles out there that would make a great platform for these chamberings if they work out.

So far, I have liked everything I have seen with this 6.5.

I don;t even have a name for it yet, pretty sad. Kind of like a dad calling his kid "hey you"!!

More on these rounds soon to come. I will not give any details to the parent case or specs but I will say the case used is vastly superior to the RUM in case quality and soon it will be world class quality.

Did I mention that the fireforming loads with the 140 gr SP recoiled about like a 22-250 in a varmint weight rifle!!! She is a pleasure to shoot!

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
  #14  
Old 10-18-2005, 03:29 AM
Gold Member
 
Join Date: Jul 2005
Location: East TX
Posts: 773
Re: 1500yd plus pdog results

Sounds like an Allen Short Mag in the making . . .

Then of course you will have to release a line of Allen Super Short Mags in say 24, 25, 26 cal. [img]/ubbthreads/images/graemlins/grin.gif[/img]
__________________
Stephen
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: 1500yd plus pdog results
Thread Thread Starter Forum Replies Last Post
Newcon 1500yd rangefinder? Boman Long Range Scopes and Other Optics 3 09-14-2010 12:49 PM
need some info on pdog hunting backyardsniper Long Range Hunting & Shooting 1 08-23-2010 11:36 AM
300Win Mag for 1000-1500yd pd shooting?? Sharpshooter243 Varmint Hunting 14 03-01-2010 03:42 PM
Long Range Pdog jerrschmitt Varmint Hunting 3 07-19-2009 01:21 PM
SOLD: Leupold RX-IV 1500yd Rangefinder Price drop $375 nad1967 Optics For Sale 0 11-06-2008 07:40 AM

Current Poll
Do you watch outdoor shows live or by recording them?
Always recorded - 13.18%
112 Votes
Mostly recorded - 24.12%
205 Votes
Sometimes recorded - 14.82%
126 Votes
Rarely or never recorded - 47.88%
407 Votes
Total Votes: 850
You may not vote on this poll.

All times are GMT -5. The time now is 01:03 AM.


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