300 Norma Improved 35 degree

[Jud96]

You guys don’t like the BAT modular bolt design? I honestly thought it was pretty neat. I haven’t messed with one in person but it looked like a good idea to me. Sorry to get off topic.

 

[Wildcats]

Take a look at Kruger Arms Viper338 action. It is proportioned to feed the 338LM with 300 grain Bergers in CIP mags and will eject live rounds. The bolt has interchangeable heads and I planned for the future with an inexpensive magnum bolt head as well.

Kauger Arms

 

[Alex Wheeler]

I’m guessing the new bolt allows bolt face changes

Borden has the larger lugs I prefer for these

 

[Alex Wheeler]

You guys don’t like the BAT modular bolt design? I honestly thought it was pretty neat. I haven’t messed with one in person but it looked like a good idea to me. Sorry to get off topic.

I do not. Does it stop me from using them when its the best choice? No. Are the one piece bolts better, yes.

 

[Ranger188]

The Bat M won't eject a live round without pulling the bolt.
I did purchase the Lapua bolt face bolt just for my 300 NMI. barrel.
Took 9 months.....

 

[shoot4fun]

Kauger Arms

Auto-correct!

 

[Alex Wheeler]

Ejecting a live round is not that important to me. We often have to pull the bolt to do that.

 

[JrCaps]

I do not. Does it stop me from using them when its the best choice? No. Are the one piece bolts better, yes.

Alex if I may ask in what situation would you prefer a Bat HR to say a Borden on a 300NMI build and for what reasons?

 

[MagnumW]

The Borden Denali has a recoil lug held in by one screw. I don’t have any experience with glue-in actions so hard for me to get excited about it without learning more.

 

[Alex Wheeler]

Alex if I may ask in what situation would you prefer a Bat HR to say a Borden on a 300NMI build and for what reasons?

Those are the 2 best options. Since bat went to a 2 piece bolt the decision is difficult. About the only thing bat has on the borden is an integral rail. But the borden is pinned so it not going anywhere. You cant make a bad choice here

 

[cb4128]

Afternoon Everyone,

I'm having a 300 NMI built as we speak with Alex's reamer design.

I'm having a hard time sifting through all of this data to identify the best spot to fireform my cases, and the range of powder charges for the following combination:

245gr Berger Elite Hunters
VV n565 powder
Peterson brass

Rifle is being built with a Defiance Deviant Tactical action with integral rail and a 28" bartlein 1-8 twist barrel.

I'm pretty much stuck with the 245's for both fire forming and shooting with my twist, so that is part of my problem with figuring out where to start!

Any help on a powder charge range for both fire forming and potential top end for the Improved version would be a big help for me to get started!

Thanks everyone!

 

[rhovee]

I wouldn’t be fire forming with 245’s. Get some 220 eldx or 225 eldm. Jam them about 20 and make sure you have a crush on close. N565 is same burn rate as H1000. I used 84 with 210 vlds. So I would personally use 80 grains with 245’s and 82 with 220-230 grain.

 

[Steve Blair]

I also have data on the 230 Berger. This was in a 28" Krieger. A little heavier platform, more like 13lb with optics and bipod. I played with this one last year. This 600 yd pressure ladder did hold up. It is the ideal shaped ladder though. That 85 grain load was extremely accurate up until I pull off the barrel. I think the 230 is probably the ideal bullet in this case, but there is a little jump in recoil.

Alex - I've shot thousands of 230 Hybrids in .300 WSM. It is the most precise bullet I have loaded in almost fifty years of reloading. You noted the problem for F-Class. It causes handling problems and requires constant attention.

 

[Tekardi]

Hello Everybody

First of all I must tell that I have a set up with a 30 inch tube 1_8 twist with Mr Alex Wheeler design ( minor changes in neck diameter only ) using Lapua Brass and it has been an outstanding set.
I Just prompt with the Argentinian Record in our Heavy Class that it’s your light division in USA hitting consequently at 1560 meters in the last stage, the only words that I can express is thank you Mr Wheeler for your design .
Set up is:

Cadex Kraken Action/ Chasis
Bartlein 1.35 to 0.90 profile 1-8 twist 30 inch tube
Vortex Razor II
Ryan Pierce Muzzle Break
Lapua Brass
Federal Gold Primers
Local A19 powder 88 grn
I used Berger 215 grn flying at 3047/3057 fps
Temperature was 16 degrees Celsius
DA 134
Hum 80 %
Only 65 shoots down this new barrel !

I must say that the performance of this setup has been outstanding. It has enabled me to consistently hit targets at 1560 meters, securing the record. Once again, I want to express my sincere gratitude to Mr. Wheeler for his design.

Thank you all for your support and encouragement.

 

[Wildcats]

Congrats on great shooting Amigo

 

[Alex Wheeler]

Hello Everybody

First of all I must tell that I have a set up with a 30 inch tube 1_8 twist with Mr Alex Wheeler design ( minor changes in neck diameter only ) using Lapua Brass and it has been an outstanding set.
I Just prompt with the Argentinian Record in our Heavy Class that it’s your light division in USA hitting consequently at 1560 meters in the last stage, the only words that I can express is thank you Mr Wheeler for your design .
Set up is:

Cadex Kraken Action/ Chasis
Bartlein 1.35 to 0.90 profile 1-8 twist 30 inch tube
Vortex Razor II
Ryan Pierce Muzzle Break
Lapua Brass
Federal Gold Primers
Local A19 powder 88 grn
I used Berger 215 grn flying at 3047/3057 fps
Temperature was 16 degrees Celsius
DA 134
Hum 80 %
Only 65 shoots down this new barrel !

I must say that the performance of this setup has been outstanding. It has enabled me to consistently hit targets at 1560 meters, securing the record. Once again, I want to express my sincere gratitude to Mr. Wheeler for his design.

Thank you all for your support and encouragement.

Congratulations on your record!

 

[Tekardi]

Congratulations on your record!

Thanks Alex now going to National Cup on September and Grand Slam

 

[Alex Wheeler]

Afternoon Everyone,

I'm having a 300 NMI built as we speak with Alex's reamer design.

I'm having a hard time sifting through all of this data to identify the best spot to fireform my cases, and the range of powder charges for the following combination:

245gr Berger Elite Hunters
VV n565 powder
Peterson brass

Rifle is being built with a Defiance Deviant Tactical action with integral rail and a 28" bartlein 1-8 twist barrel.

I'm pretty much stuck with the 245's for both fire forming and shooting with my twist, so that is part of my problem with figuring out where to start!

Any help on a powder charge range for both fire forming and potential top end for the Improved version would be a big help for me to get started!

Thanks everyone!

Rule of thumb I use for fire forming anything is a mid range load for the parent case.

 

[Tekardi]

A tips 230 flying at 3000/ 3015 fps local A19 powder ( seems H1000 86 grn ) @1660 yards 8 twist 30 inch barrel , target was 33 inch x 33 inch 3 shoots in 2 same line 1 one 15 inch vertical check video !


Short video

 

[Tekardi]

Went to try some loads to the range
30 Inch Barrel
1-8 twist
250 A Tips
3.8075 COAL
336 bushing

Used H870 ( Still some left ) and R50

2 Loads R50 95 & 96

1 Load H870 92

All loads were in 3050 fps range

Quickload stated me total different numbers ! low compared to real


Just want to see speeds around, R50 seems promising, don t want to go up in VO with this twist and shread them out , has anyone found a good node around 2900 ? Just to say there s a ejector mark on 95 R50, it was there before it never hit pressure , crunch load. Need to try 95 at a mile next. But would like to downgrade load if someone found a nice node around 2900 please let me know, thanks