7mm Blaser Magnum info

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Originally Posted by Seventenths

I'm following this thread with interest as I have a T3 in 7mm Rem Mag I'm keen to re-barrel and the 7mm Blaser is one that tickles my fancy along with a 7mm SAUM.

Out of interest if I was to be running 162 gr projectiles out of a Blaser with a 21-22 inch barrel and an over barrel DPT suppressor what velocities would I be looking at?

Also, who would you get the re-barrelling done by as neither Trueflite & Gunworks have reamers for this calibre?

Also, what dies are people running for their blasers?

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3050 as a guess 21” was running 2950ish with 180 vlds . If going shorter than 24 and running 160class bullets I’d recommend a saum. Dies and brass are unobtainable for the blaser and will be for some time rebarreling can be in Tauranga threw alpine precision or Nelson ways by at terminator products they did both have reamers I’d assume they still do

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Originally Posted by Double Shot

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

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Greeting All,
Nice to see the 6.5x68 mentioned. Interesting that a cartridge with its roots before WW2 still gets mentioned in such company. The more things change the more they stay the same.
Regards Grandpamac.

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Originally Posted by Gkp

69 grains of Rl26 in a 26 inch tube should spit a 180 eldm at 3050 fps plus or minus 30 fps

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Hi Kelton,

Very interesting - Im thinking ill stay away from the eldx's and wait until i can get my hands on some Bergers.

I appreciate the info

I’m stumped, working up a load for a new blaser, 26in bartlin 110 down the tube. I’m tapped out at 66grn of r26/180eldms. ejector marks and heavy bolt. Speed is 2987fps 65grn is @2967 and shoots ok. This does seem sloooow. I’m 15tho away from the lands and barrel is clean. Anyone else had similar issues?

Isn’t your barrel supposed to have the speed get a bit faster after 100 to 200 or so rounds? Which would put you right with the speed that guys have.

Aye seems a bit early to be hitting pressure. I’m running 180 VLDs with 67-68 gn RL26 for 3050-3060 fps. Pressure signs started at 68.3gn. Have not tried ELDMs . What’s your COAL?

Yea same here I ran 3060 on a new barrel 67-68 gns

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Originally Posted by chainsaw

Aye seems a bit early to be hitting pressure. I’m running 180 VLDs with 67-68 gn RL26 for 3050-3060 fps. Pressure signs started at 68.3gn. Have not tried ELDMs . What’s your COAL?

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3.325 COAL

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Originally Posted by Kelton

Yea same here I ran 3060 on a new barrel 67-68 gns

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I was not far off that speed with 67 but stopped there, Brass took a beating, kinda wanted to look after it as there’s none available.