Well, I just did a comparison of WLR vs WLRM primers in my go to load of 47 gr. of Big Game & 140 gr. Accubond. Average speed was 2919 fps with WLR and 2926 fps with WRLM, not enough difference to warrant any change! Accuracy was quite a bit better with the standard WLR primer, but no conclusions to be made as this 80 yr. old shooter's eyes are a major factor!!!
