02-02-2020, 02:04 PM
Fredman Wrote:Thanks all for helping me understand. I own 2 Grendels. One 16” Faxton that I can’t imagine ever wanting another deer rifle, and a 20” with a Lilja barrel. I have two nice 223s that just sit there in the safe. In fact that might be lovers because there now is a 22 Nosler next to them! That might have been an accident.
The bolt action belongs to a friend who was trying to come up with a load for the new Sierra gamechangers. 130g 22” barrel, 8208 at 2311 FPS I believe. He was disappointed.
From your help above and searches on this site, I believe the following.
1- 8208 is not the best powder for 130g bullets.
2- it could be possible to achieve 2500 FPS or better with 130g and the right powder. [BWild97 shows a couple of 2600 FPS loads for the 129 and 130 grain bullets].
3- he Might be better off with 120-123 bullets.
Please let me know if you think I’m not on track, and thanks for your help.
Terry
If his bolt actions mag system allows handloads at are a lil over 2.300 coal.
I would give h4895 a try are ar-comp. I'm useing h4895 with the 129 ablr from my CZ varmint grendel and getting great speed. Now the load is compressed and I so have to vibra settle the powder but it's a very very very accurate load.
Johnnys reloading bench on you tube has some data with the 129 ablr and ar-comp as well that y'all might find intresting.
I would change powder and rework the load. I haven't tryed the gamechangers and probably won't because the 129 ablr has all the bc and sd I could ever want for 1000 yard shooting and for hunting.
Hope this helps.