Thread: 7mm Blaser Magnum info

The 7mm Blaser Mag seems to be growing in popularity so I figure it deserves its own thread.

Here's some of the info I've collated which might be useful to those that have, or are considering the case.

Case Comparison

L to R. 7mmBM, 7mm SAUM, 300Blaser Magnum


L to R. 7 Rem Mag, 7 LRM, 7BM


L to R. 300Norma, Edge, 300BM, 7BM, 7SAUM


L to R. 7SAUM, 7WSM, 7BM


Reamer



Useful threads

• https://www.longrangehunting.com/thr.../#post-1249871
• https://www.longrangehunting.com/thr...rience.190052/
• https://www.longrangehunting.com/thr.../#post-1403421
• https://www.longrangehunting.com/thr.../#post-1417368
• https://www.longrangehunting.com/thr.../#post-1419108 Post #6



Load info from Blaser.

• Our standard load for use in Blaser Rifles:
o Non-compressed load of 73gr ADI2217 for 3100fps with 162grHornady ELD-X.
o Seated to engage the lands.

• 7mm Blaser Magnum Load Data from Norma:

120gn Nosler BST, OAL 78.0mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma URP 64.3 955 67.7 1024
Norma 204 65.4 944 68.8 1008
Vihtavuori N150 65.4 944 68.8 1008
Norma MRP 69.7 977 73.3 1046
Vihtavuori N165 69.7 977 73.3 1046
Reloader 22 69.7 977 73.3 1046
IMR7828 69.7 977 73.3 1046

140gn Nosler AB, OAL 78.0mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 65.9 900 69.4 961
Vihtavuori N165 65.9 900 69.4 961
Reloader 22 65.9 900 69.4 961
IMR7828 65.9 900 69.4 961

156gn Norma Oryx, OAL 75.4mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 63.8 858 67.3 908
Vihtavuori N165 63.8 858 67.3 908
Relaoder 22 63.8 858 67.3 908
IMR7828 63.8 858 67.3 908

170gn Norma Oryx, OAL 76.4mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 62.2 833 65.4 881
Vihtavuori N165 62.2 833 65.4 881
Reloader 62.2 833 65.4 881
IMR7828 62.2 833 65.4 881







Load info emailed from Berger Bullets.

COAL 3.300"
26" barrel
180gr bullet

Reloader 26
Min 63gr 2769fps
Max 66.2gr 2896fps 89% full

ADI 2225
Min 69gr 2791fps
Max 72.6gr 2936fps 104% full


I'm hoping people will add real world data to this thread and it'll become a useful resource for all.

As usual, be careful. Start low and use these as a guide only.

@Kiwi Greg would have the real world data.

Originally Posted by Feebz

The 7mm Blaser Mag seems to be growing in popularity so I figure it deserves its own thread.

Here's some of the info I've collated which might be useful to those that have, or are considering the case.

Case Comparison

L to R. 7mmBM, 7mm SAUM, 300Blaser Magnum
Attachment 89195

L to R. 7 Rem Mag, 7 LRM, 7BM
Attachment 89196

L to R. 300Norma, Edge, 300BM, 7BM, 7SAUM
Attachment 89198

L to R. 7SAUM, 7WSM, 7BM
Attachment 89199

Reamer
Attachment 89200


Useful threads

• https://www.longrangehunting.com/thr.../#post-1249871
• https://www.longrangehunting.com/thr...rience.190052/
• https://www.longrangehunting.com/thr.../#post-1403421
• https://www.longrangehunting.com/thr.../#post-1417368
• https://www.longrangehunting.com/thr.../#post-1419108 Post #6



Load info from Blaser.

• Our standard load for use in Blaser Rifles:
o Non-compressed load of 73gr ADI2217 for 3100fps with 162grHornady ELD-X.
o Seated to engage the lands.

• 7mm Blaser Magnum Load Data from Norma:

120gn Nosler BST, OAL 78.0mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma URP 64.3 955 67.7 1024
Norma 204 65.4 944 68.8 1008
Vihtavuori N150 65.4 944 68.8 1008
Norma MRP 69.7 977 73.3 1046
Vihtavuori N165 69.7 977 73.3 1046
Reloader 22 69.7 977 73.3 1046
IMR7828 69.7 977 73.3 1046

140gn Nosler AB, OAL 78.0mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 65.9 900 69.4 961
Vihtavuori N165 65.9 900 69.4 961
Reloader 22 65.9 900 69.4 961
IMR7828 65.9 900 69.4 961

156gn Norma Oryx, OAL 75.4mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 63.8 858 67.3 908
Vihtavuori N165 63.8 858 67.3 908
Relaoder 22 63.8 858 67.3 908
IMR7828 63.8 858 67.3 908

170gn Norma Oryx, OAL 76.4mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 62.2 833 65.4 881
Vihtavuori N165 62.2 833 65.4 881
Reloader 62.2 833 65.4 881
IMR7828 62.2 833 65.4 881


Attachment 89201

Attachment 89202


Load info emailed from Berger Bullets.

COAL 3.300"
26" barrel
180gr bullet

Reloader 26
Min 63gr 2769fps
Max 66.2gr 2896fps 89% full

ADI 2225
Min 69gr 2791fps
Max 72.6gr 2936fps 104% full


I'm hoping people will add real world data to this thread and it'll become a useful resource for all.

As usual, be careful. Start low and use these as a guide only.

good work mate

Originally Posted by Tim Dicko

good work mate

Thanks mate. Hope that Totonka pack is still going well for you.

Originally Posted by Feebz

Thanks mate. Hope that Totonka pack is still going well for you.

its going awesome as. its seen a heap of use. love it thankyou. im thinking of one day building a 7mm blaser. its good seeing load data figures. i would be stoked with that accuracy!

Originally Posted by Tim Dicko

its going awesome as. its seen a heap of use. love it thankyou. im thinking of one day building a 7mm blaser. its good seeing load data figures. i would be stoked with that accuracy!

Bro you sound like Jono

Originally Posted by 199p

Bro you sound like Jono

bro i could be the biggest tyre kicker in the world. Short arms long pockets.

Built a few now, goes well enough to scare the pants off a 28 Nosler with 10 grains less powder

The latest one, https://www.nzhuntingandshooting.co....-magnum-42702/

I have 7 Blaser Mag & 6.5-7 Blaser reamers & soon a 300 Blaser mag reamer

I'm happy to build a 7 Blaser Mag on a T3 Tikka, won't build a 28 Nosler on one though....

Originally Posted by Feebz

The 7mm Blaser Mag seems to be growing in popularity so I figure it deserves its own thread.

Here's some of the info I've collated which might be useful to those that have, or are considering the case.

Case Comparison

L to R. 7mmBM, 7mm SAUM, 300Blaser Magnum
Attachment 89195

L to R. 7 Rem Mag, 7 LRM, 7BM
Attachment 89196

L to R. 300Norma, Edge, 300BM, 7BM, 7SAUM
Attachment 89198

L to R. 7SAUM, 7WSM, 7BM
Attachment 89199

Reamer
Attachment 89200


Useful threads

• https://www.longrangehunting.com/thr.../#post-1249871
• https://www.longrangehunting.com/thr...rience.190052/
• https://www.longrangehunting.com/thr.../#post-1403421
• https://www.longrangehunting.com/thr.../#post-1417368
• https://www.longrangehunting.com/thr.../#post-1419108 Post #6



Load info from Blaser.

• Our standard load for use in Blaser Rifles:
o Non-compressed load of 73gr ADI2217 for 3100fps with 162grHornady ELD-X.
o Seated to engage the lands.

• 7mm Blaser Magnum Load Data from Norma:

120gn Nosler BST, OAL 78.0mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma URP 64.3 955 67.7 1024
Norma 204 65.4 944 68.8 1008
Vihtavuori N150 65.4 944 68.8 1008
Norma MRP 69.7 977 73.3 1046
Vihtavuori N165 69.7 977 73.3 1046
Reloader 22 69.7 977 73.3 1046
IMR7828 69.7 977 73.3 1046

140gn Nosler AB, OAL 78.0mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 65.9 900 69.4 961
Vihtavuori N165 65.9 900 69.4 961
Reloader 22 65.9 900 69.4 961
IMR7828 65.9 900 69.4 961

156gn Norma Oryx, OAL 75.4mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 63.8 858 67.3 908
Vihtavuori N165 63.8 858 67.3 908
Relaoder 22 63.8 858 67.3 908
IMR7828 63.8 858 67.3 908

170gn Norma Oryx, OAL 76.4mm

Powder Min Charge (gn) Velocity (m/s) Max Charge (gn) Velocity (m/s)
Norma MRP 62.2 833 65.4 881
Vihtavuori N165 62.2 833 65.4 881
Reloader 62.2 833 65.4 881
IMR7828 62.2 833 65.4 881


Attachment 89201

Attachment 89202


Load info emailed from Berger Bullets.

COAL 3.300"
26" barrel
180gr bullet

Reloader 26
Min 63gr 2769fps
Max 66.2gr 2896fps 89% full

ADI 2225
Min 69gr 2791fps
Max 72.6gr 2936fps 104% full


I'm hoping people will add real world data to this thread and it'll become a useful resource for all.

As usual, be careful. Start low and use these as a guide only.

Some of your data is aways off, 72.6 of 2225 with a 180 will ensure you won't need a primer tool to put a primer in a case, or at least nail polish etc to keep it in there....I couldn't/wouldn't run that even with a longer COAL

@Kiwi Greg what sort of barrel life would you expect with a 6.5-7 Blaser & what speed from say a 140gn pill?

Originally Posted by outdoorlad

@Kiwi Greg what sort of barrel life would you expect with a 6.5-7 Blaser & what speed from say a 140gn pill?

I can't imagine it would be great but at least 5-700 maybe if looked after nicely, ie hunting rifle, not gong/Goat/Varmint rifle.

IIRC 140-43s easily past 3200fps would have to check the data

Originally Posted by Kiwi Greg

I can't imagine it would be great but at least 5-700 maybe if looked after nicely, ie hunting rifle, not gong/Goat/Varmint rifle.

IIRC 140-43s easily past 3200fps would have to check the data

Well there is load development sighting in and practice and fa hunting trips to a barrel

Originally Posted by 260rem

Well there is load development sighting in and practice and fa hunting trips to a barrel

Yep just like a big 7mm, if you get it all organised inside 200 rounds which is quite doable there is still 3-500 rounds for hunting which is tons, at least 5-10+ years worth of hunting.

If its less you have spent tons on Ammo, diesel & choppers so can easily afford the eleven hundred to twelve hundred ish to replace the barrel

great thread…regards the 6.5, i assume it was more likely to run 150+ grains in it…

cheers

Hey Greg,

Your thoughts on comparing a 6.5x68 RWS with the the 300 Blaser, just looking a basic dimensions they look very similar, even their H2O capacity.
I have a 300 Blaser and love it, and currently building a 6.5x68RWS so find this thread interesting.
Both are hunting rifles.

Cheers