Hi guys! I have some questions about my reloading data. I am new to using a crono and don't have a lot of experience fine tuning my loads. All taken at 100 yards Rifle - Remington 700 300RUM Sendero Brass - New Remington Primer - CCI 250 I have 2 different powders used, the first is RL-25 with 208gr. A-Max 90 grains 3023 ES is 27fps 3003 3016 3009 2996 90.5 grains 3044 ES is 14fps 3044 3037 3030 3030 91 grains 3051 ES is 35fps 3058 3030 3023 3051 91.5 grains 3058 ES is 42fps 3072 3096 3072 3100 On all of these loads it was easy to open the bolt, there were no ejector marks on the brass, the primer was a little flatened. Second set of data using Retumbo and 200gr SMK 91.5 grains 3023 ES is 21 3030 3037 3023 3016 92 grains 3100 ES is 22 3086 3108 3086 3100 I still have to test 92.5, 93, 93.5, & 94 with the retumbo and 200 SMK Same as before, bolt was easy to open, no ejector marks, primer was a little flatened but not as much as RL-25. My question is, what should I do with this data, what would you do with this data? Is the extreme spread ok? The groups were better with the RL-25 (1" - 1.25"), they were not good with the retumbo (1.5: - 2"). Can I keep going and up the powder looking for my max velocity. I have shot a 3 shot group @ .175 M.O.A. with 86.5 grains of RL-25 but was not able to duplicate that. Best after was about .6 This is a rather slow load and would like to get all I can out of this rifle. All though it is not as easy to shoot as my .308 5R I would like to get that 1 load that is repeatable that I will know what it is going to do from 100 yards to whatever. How does one find this load? I thought I had it with 86.5 but I cannot get it tight again and I think it is too slow. I haven't crono'd it yet though. I can actually shoot under 1 M.O.A all day with my 5R and know the sendero is capable as well but I have to hold the RUM tighter which gets more movement on target through the scope. There has to be a way to shoot that sucker and get better groups. Other question, my 5R seems to have a tight chamber. It is sometimes hard to close the bolt and open after firing with factory ammo. I have ejector marks on factory ammo. My reloads do the same in that I have a hard time closing the bolt when I have full length sized the brass and it is slightly hard to open the bolt but do not have heavy ejector marks. I don't know what to think. Sorry for all the questions and my newbieness. I have actually been reloading for 9 years but recently got into precision reloading.