rossislider Report post Posted July 13, 2013 I am looking for some load data for my Sendero 300 RUM. I plan to start with 210 grain VLDs and Retumbo powder. Does anyone have the Berger minimum and maximum load data for the bullet and powder? Thanks Share this post Link to post Share on other sites
Couzer Report post Posted July 13, 2013 92 grns retumbo, 215 m primers, Remington factory brass, set bullet to magazine. High is 97grns low 89 grns...... always start looking for pressure signs as you increase your powder. Around 92grns is a sweet spot for the Remington's Share this post Link to post Share on other sites
WHT_MTNMAN Report post Posted July 13, 2013 92 with my factory barrel....90 with Schneider barrel ...great load 1 Share this post Link to post Share on other sites
rossislider Report post Posted July 13, 2013 Thank you both. I think I will start at around 91 grns and work my way up from there. Have any of you found they group better at 200 yards versus 100? That has been my experience with some other calibers. Share this post Link to post Share on other sites
WHT_MTNMAN Report post Posted July 13, 2013 I can't shoot straight enough to tell much of a difference at 100 vs 200....I know I shot less than 1/4 inch groups occasionally at both distances... 1 Share this post Link to post Share on other sites
Couzer Report post Posted July 13, 2013 I have better groups at 300 yds vs 100 yds. I would at least go 200. 1/2" for me at 300 yds, I have better luck at this range Share this post Link to post Share on other sites
rossislider Report post Posted July 13, 2013 I was researching it and found this great video by Berger that helps to explain why some bullets may group better at longer distances. Share this post Link to post Share on other sites
firstcoueswas80 Report post Posted July 14, 2013 My 257 Shoots The bergers Better At 200 Then 100 Share this post Link to post Share on other sites
azgutpile Report post Posted July 15, 2013 They emailed this to me a 3 years ago. 210 grain berger VLD (Retumbo) 85.5 grains (start) 2,844 fps--- to 92 grains (max) --- approximate max velocity is 3,035 fps with a 99.2 fill ratio. Wht_mtnman- what velocities are you getting with your Schneider? I'm getting 3,050 fps with 86 grains of H1000. Share this post Link to post Share on other sites
gaps Report post Posted July 15, 2013 If you can get your hands on them you may want to try either the 215gr or 230gr berger hybrids...have read some good things on them...either way good luck! http://www.longrangehunting.com/forums/f19/berger-215-hybrid-performance-elk-101687/ Share this post Link to post Share on other sites
gaps Report post Posted July 15, 2013 http://www.longrangehunting.com/forums/f19/230-gr-berger-300-ultra-78510/ Share this post Link to post Share on other sites
WHT_MTNMAN Report post Posted July 15, 2013 They emailed this to me a 3 years ago. 210 grain berger VLD (Retumbo) 85.5 grains (start) 2,844 fps--- to 92 grains (max) --- approximate max velocity is 3,035 fps with a 99.2 fill ratio. Wht_mtnman- what velocities are you getting with your Schneider? I'm getting 3,050 fps with 86 grains of H1000. I'm getting 3075 with 90 gr in a 29+ barrel Share this post Link to post Share on other sites
rossislider Report post Posted July 15, 2013 Interesting. I loaded up 25 rounds with 210 Bergers this weekend in the following weights: 5 rounds - 91 grns Retumbo 5 rounds - 91.5 grns Retumbo 5 rounds - 92 grns Retumbo 5 rounds - 92.5 grns Retumbo 5 rounds - 93 grns Retumbo You all have me wondering if I went to high on the powder? Thoughts? Share this post Link to post Share on other sites
azgutpile Report post Posted July 16, 2013 I would load a few more with a smaller charge and work up from there looking for signs of pressure. 1 Share this post Link to post Share on other sites
