Jeff (Broz) has logged extensive experience using both the 215 and 230gr Bergers on game. Up close or past 1k - no problems at all. An 8 twist barrel is too fast for a 30 cal in my opinion. You'd be much happier with a 1-9 or 1-10. Either of these twist rates will stabilize anything from a 208 AMAX to a 230 Berger.
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.300 Norma magnum for hunting??
- Thread starter Danehunter
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Jeff (Broz) has logged extensive experience using both the 215 and 230gr Bergers on game. Up close or past 1k - no problems at all. An 8 twist barrel is too fast for a 30 cal in my opinion. You'd be much happier with a 1-9 or 1-10. Either of these twist rates will stabilize anything from a 208 AMAX to a 230 Berger.
Spook
Well-Known Member
300NM Imp'd version I just started working with. Fireforms with 180 Hornady going 3085 FPS.
ishootkittens
Well-Known Member
40* or 35? I too am in the middle of a NIMP build and I was wondering what your fireform data was with the 180gr bullet. Are you planning on using a magazine?300NM Imp'd version I just started working with. Fireforms with 180 Hornady going 3085 FPS.
Thanks
Spook
Well-Known Member
Forty, .. using 84 gr MR-4000 , I get the impression its no where near max .
It fits in the AICS knock offs that I use.
I went with a 37* shoulder on my 300 Long Range Hunter wildcat and fire formed cases feed with no problems out the staggered round 3.850" Accurate Mags /DBM system, rifle is completed with a Darrel Holland/McMillan Long Range Hunter stock (Sako Hunter with extra high cheek pc for large scopes) 30" Bartlein 5r 10 twist barrel and a Piercision Muscle Brake, have 100 pcs of brass fireformed by cow....did a water weight test on 20 cases at random and case h20 capacity ave. is 110.6 gr,
can't wait to load some ammo but waiting on dies .....
can't wait to load some ammo but waiting on dies .....
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Swamplord,
You seemed to have a lot of knowledge with the 300NM. I am new to this forum and really wants to find out more about the 300NM before I get it build. Can you perhaps please tell me the benefits of having a 37 degree shoulder on the cartridge? What does it change to the ballistics of the 300NM in regards to muzzle velocity? How will it affect barrel life if any? I take it you get a gunsmith to use a custom reamer for your barrel and fire form ordinary cases through it. What other benefits does this improved shoulder angle have over the normal 300 NM?
Where do you get your new dies made for the "improved" cartridge?
I am a little inexperienced when it comes to the improved version of the 300NM and I really want to learn a thing or two from you guys.
Thanks.
You seemed to have a lot of knowledge with the 300NM. I am new to this forum and really wants to find out more about the 300NM before I get it build. Can you perhaps please tell me the benefits of having a 37 degree shoulder on the cartridge? What does it change to the ballistics of the 300NM in regards to muzzle velocity? How will it affect barrel life if any? I take it you get a gunsmith to use a custom reamer for your barrel and fire form ordinary cases through it. What other benefits does this improved shoulder angle have over the normal 300 NM?
Where do you get your new dies made for the "improved" cartridge?
I am a little inexperienced when it comes to the improved version of the 300NM and I really want to learn a thing or two from you guys.
Thanks.
ishootkittens
Well-Known Member
Ive got a couple of pieces of brass formed with a 35* shoulder and the aics seems to leave some pretty good scratches on the case. Ive filed and sanded and it is smooth as silk, but the brass is still coming out with scratches. Did u have anything like that happen with your mags?
Thanks
Spook
Well-Known Member
hasnt been an issue . Badger action.
Danehunter
Well-Known Member
Karoo,
I see, it's a single shot action. That makes it very stiff with no bottom magazine cutout.
Very clean design. What trigger does it use or will it accommodate?
I see, it's a single shot action. That makes it very stiff with no bottom magazine cutout.
Very clean design. What trigger does it use or will it accommodate?
Litehiker,
I have decided to go with the Barnard PLM action, Barnard trigger and Barnard's tactical M10 stock, made for it's own action. The PLM action's bolt will be lightly fluited. It will take the AI magazines. It is a very accurate combination. The rifle will be done mid August. I am really looking forward to it. Componants are now very difficult to get to the UK where I live, so I had to go with an alternative option. I am very happy with my decision because I know that it will be a super accurate F Class gun and long range hunting gun. I can't wait to visit South Africa next year for some long range hunting!
Danehunter
Well-Known Member
Karoo,
As I understand it G.B. and other EU nations often prohibit the use of "military" cartridges like the 5.56 NATO and 7.62 NATO. Is that correct for "Old Blightey"?
Here in the U.S. military and in Germany the .300 Win. mag. is a sniper rifle round and may even be classified as a "military" round in other countries. That would be a shame if the .300 Win. mag. was unavailable there but actually the .300 Norma mag. is a better cartridge, ballistically speaking.
As I understand it G.B. and other EU nations often prohibit the use of "military" cartridges like the 5.56 NATO and 7.62 NATO. Is that correct for "Old Blightey"?
Here in the U.S. military and in Germany the .300 Win. mag. is a sniper rifle round and may even be classified as a "military" round in other countries. That would be a shame if the .300 Win. mag. was unavailable there but actually the .300 Norma mag. is a better cartridge, ballistically speaking.
Litehiker,
You are right about the military calibres in Euporpe, but not in GB. We have got plenty of hunters using the .308 Win and some using the .223 Rem. The .308 Win is basically the same calibre except for very small differences to the 7.62. The problem is that it needs to be a deer leagal caliber. GB has 6 different species of deer and for the majority of them, the .223 is not deer leagal. In fact, I think it is only leagal for Chinese Water Deer.
With the extremely tough gun laws that we have, you will then have to come up for a suitable justification to have a .223 like fox hunting. .338's is also difficult to get, but I know we have a 50cal club! The 300NM is completely new to us even though I wanted once since 2012. The guy putting the weapon together is in charge of the GB F-Class team and after seeing it's capabilities on paper, he is now putting one together for himself!
Danehunter
Well-Known Member
OK, that will make at least two .300 Norma mag rifles in G.B.
As they say in OZ, "Good on ya!"
Now... what will you use for a rifle scope?
I have a Bushnell ERS 3.5 - 21 X 50 mm objective lens with a 34 mm tube. I have one of the last available Horus H59 reticles, which I like a lot. That scope has been tested against 18 other top long range scopes like Leupold, Schmidt & Bender, Zeiss, Swarovski, etc. and it landed exactly mid pack (#9) but was rated the "Best Buy" of all the scopes for its overall features and decent glass. The test was at "The Firearm Blog" site.
If that reticle is no longer available in that particular scope the similar TreMor reticle is very good, and in fact better for determining correct windage. Some U.S. military sniper rifles now use the TreMor reticle.
Also I have Bushnell's laser range finding ARC 1 Mile 10 power binoculars. I have them set to read in Mils and they are programmed to show my mil hold-over in meters for my particular .300 Win. Mag cartridge. If Bushnell don't have .300 NM ballistics in their online chart you can call and ask them for a specific cartridge/bullet combo ballistics.
These binoculars and a mil reticle scope work perfectly for deer and elk hunting.
But my final piece of gear for highly accurate firing solutions will be a Kestrel/Applied Ballistics weather station and ballistic computer. The Applied Ballistics program is the most accurate ballistics program available due to its data being based on real world testing, not on mathematical ballistic extrapolations.
With this all I need do is enter an accurate range (from my LRF binoculars) and the handheld Kestrel/A.B. weather station will account for altitude density, temperature, spindrift, coriolis effect, your specific muzzle velocity, wind speed and direction at your position and most other factors except wind at target. Wind at your position is the most important wind factor. The device can be pre-programmed to hold several of your favorite loads and also those for several other rifles. I'm constantly amazed at what technology can do in handheld sized devices.
As they say in OZ, "Good on ya!"
Now... what will you use for a rifle scope?
I have a Bushnell ERS 3.5 - 21 X 50 mm objective lens with a 34 mm tube. I have one of the last available Horus H59 reticles, which I like a lot. That scope has been tested against 18 other top long range scopes like Leupold, Schmidt & Bender, Zeiss, Swarovski, etc. and it landed exactly mid pack (#9) but was rated the "Best Buy" of all the scopes for its overall features and decent glass. The test was at "The Firearm Blog" site.
If that reticle is no longer available in that particular scope the similar TreMor reticle is very good, and in fact better for determining correct windage. Some U.S. military sniper rifles now use the TreMor reticle.
Also I have Bushnell's laser range finding ARC 1 Mile 10 power binoculars. I have them set to read in Mils and they are programmed to show my mil hold-over in meters for my particular .300 Win. Mag cartridge. If Bushnell don't have .300 NM ballistics in their online chart you can call and ask them for a specific cartridge/bullet combo ballistics.
These binoculars and a mil reticle scope work perfectly for deer and elk hunting.
But my final piece of gear for highly accurate firing solutions will be a Kestrel/Applied Ballistics weather station and ballistic computer. The Applied Ballistics program is the most accurate ballistics program available due to its data being based on real world testing, not on mathematical ballistic extrapolations.
With this all I need do is enter an accurate range (from my LRF binoculars) and the handheld Kestrel/A.B. weather station will account for altitude density, temperature, spindrift, coriolis effect, your specific muzzle velocity, wind speed and direction at your position and most other factors except wind at target. Wind at your position is the most important wind factor. The device can be pre-programmed to hold several of your favorite loads and also those for several other rifles. I'm constantly amazed at what technology can do in handheld sized devices.
