20 vartarg loading?
- Thread starter Sniper338
- Start date
Thanks. Looks like I'll work up from 18gr. I put powder in a case and saw 18gr was at the base of the shoulder. I knew I was close and could work from there. Just wanted to double check.
I've read n120 and n130 are good. As well as AA2200.
I have reloader 7 on hand... always had good luck with most reloader powders.. gonna see how it likes #7. Then go from there. I've never used VV powders... their data isnt in grains and never cared to convert #s yet... but I may..
Vv data is in both grains and grams. Vv burn rate chart show n120 and reloader 7 on the same level.
JSH
Gold $$ Contributor
VV has both weights grains and grams
search function & or the following links may offer a lot of insight. https://www.accurateshooter.com/cartridge-guides/20caliber/
Rick300
Gold $$ Contributor
I would start in the 17.5gr range and work up. Starting at 18 could get a little spicy depending on lot number. You're going to have a full case in the mid to upper 18 grain range. RL7 shoots great in 2 of my vartargs. Maybe not the best, but a close 2nd. N120 for the win.
What is the outside neck diameter of your chamber? I have Lapua Fireball brass and the necks are too thick with a bullet inserted to chamber. Remington Fireball brass had plenty of clearance.
Fern
Silver $$ Contributor
I have read you need a 234 neck for no turn lapua but also somewhere I read the 200 datum also needed to be a little bigger but I’m no expert.
L.Sherm
Silver $$ Contributor
Neck clearance isn't the only problem clickers will be to if you dont have the reamer that's bigger at the back end.
A .234 neck will get you only .002 - .0025 neck clearance. 235 or .236 is better.
Majority of 20VT reamers were designed around the 221 Rem brass with a .232 neck
Im not sure... I don't have the specs. It was a reamer made for lapua brass. Chambered by speedy. I had speedy reamer my Wilson inline die too.
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