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std7mag · December 28, 2022, 07:55 AM

The Mark V and even the Vangard have a 1 MOA written guarantee with factory ammo.

My Weathermark LT in 7mm Weatherby Magnum with or without the brake does this for 5 shots with my handloads. With 1 caveat. It doesn't like the 175gr ABLR.
I'm thinking the combination of the 1:10 twist and the 0.3" jump.

Shoots the 160gr Sierra SPBT GameKings just fine.
51 rounds down the tube thus far.

The first gen Vangard in 243Win i had would shoot the first 3 within 1 MOA at 100 yards.
Let it cool for an hour & next 3 were about 5 inches.
Repeat and get 12 inch "group".
Always repeated this no matter what i tried. Had someone else do the same. Changed scope ( i still have & use that scope with no issues).

Was the only rifle i was happy to get rid of!

December 28, 2022, 07:55 AM	#25
std7mag Senior Member Join Date: June 23, 2013 Location: Central Taxylvania.. Posts: 3,609	The Mark V and even the Vangard have a 1 MOA written guarantee with factory ammo. My Weathermark LT in 7mm Weatherby Magnum with or without the brake does this for 5 shots with my handloads. With 1 caveat. It doesn't like the 175gr ABLR. I'm thinking the combination of the 1:10 twist and the 0.3" jump. Shoots the 160gr Sierra SPBT GameKings just fine. 51 rounds down the tube thus far. The first gen Vangard in 243Win i had would shoot the first 3 within 1 MOA at 100 yards. Let it cool for an hour & next 3 were about 5 inches. Repeat and get 12 inch "group". Always repeated this no matter what i tried. Had someone else do the same. Changed scope ( i still have & use that scope with no issues). Was the only rifle i was happy to get rid of! __________________ When our own government declares itself as "tyrannical", where does that leave us??!! "Januarary 6th insurrection". Funny, I didn't see a single piece of rope...