07-29-2013, 10:52 PM
Thanks so much for all of the replies to my thread. I will attempt to answer all of your questions and perhaps ask a few more.
Drifter: I did not arrive at an OAL by any particular process. I simply loaded a test round into a mag and seated the bullet out as far as I could. It was obviously too far out because the bullets were pretty far into the lands. I figured that out when I had a failure to fire and the round was a bitch to extract. The bullet was bound into the lands. I had to tap on my charging handle with a screwdriver handle to extract the round. Not good. I will seat the next batch to 2.250 and give that a try. Between my hot loads and the added pressure created by the bullet lodged into the lands, I am glad I didn't break my lugs, etc. Great video and info link. Thanks
LRRPF52: I purchased this 24" Grendel upper complete from Accuracy Systems in Colorado. You mention "lapping my bolt to the extension". How is that done? Are there any instructions or videos on line? Regarding the Grendel Reloading Handbook, I do not have one. I have been getting most of my info on line from various forum sources and powder manufacturer tables. I actually called Accuracy Systems and asked who manufactured their barrel but they refused to tell me.
LR1955: The last trip to the range I loaded the following charges: 8208XBR- 28.0, 28.2, 28.4, 28.5, 26.5, 27.5, 27.8 The best of the bunch was the 26.5 load. It is difficult for me to see pressure signs with the AR but I would prefer a load that did not stress my rifle. I would love to make this XBR powder work because I have so much already. The thought of putting more $$$ out for 2520 does not thrill me. However, if ya'll think that is the best choice, I will attempt to find some.
Allen: Where I live in Tennessee it is difficult to find a 200-yard range. I am going to have to though because I agree with you 100%. Plus, I need to measure the drop from 100 to 200 yards. I also need to chrono my loads.
Thanks so much to all of you for your suggestions. A few other things......I do very careful case prep but I do not crimp my cases. I am using Forster dies and they seem to be of good quality. However, I have no way to check bullet run out. I am also 66-years young and not as steady as some of you younger folks out there. I do want to compete in some 600 and 1000 yard competitions though. Two years ago I won a 1000-yard shoot. It was the first one I ever entered. I appreciate any and all advice you fellers can give me soz I can get as good a shooter as possible.
Drifter: I did not arrive at an OAL by any particular process. I simply loaded a test round into a mag and seated the bullet out as far as I could. It was obviously too far out because the bullets were pretty far into the lands. I figured that out when I had a failure to fire and the round was a bitch to extract. The bullet was bound into the lands. I had to tap on my charging handle with a screwdriver handle to extract the round. Not good. I will seat the next batch to 2.250 and give that a try. Between my hot loads and the added pressure created by the bullet lodged into the lands, I am glad I didn't break my lugs, etc. Great video and info link. Thanks
LRRPF52: I purchased this 24" Grendel upper complete from Accuracy Systems in Colorado. You mention "lapping my bolt to the extension". How is that done? Are there any instructions or videos on line? Regarding the Grendel Reloading Handbook, I do not have one. I have been getting most of my info on line from various forum sources and powder manufacturer tables. I actually called Accuracy Systems and asked who manufactured their barrel but they refused to tell me.
LR1955: The last trip to the range I loaded the following charges: 8208XBR- 28.0, 28.2, 28.4, 28.5, 26.5, 27.5, 27.8 The best of the bunch was the 26.5 load. It is difficult for me to see pressure signs with the AR but I would prefer a load that did not stress my rifle. I would love to make this XBR powder work because I have so much already. The thought of putting more $$$ out for 2520 does not thrill me. However, if ya'll think that is the best choice, I will attempt to find some.
Allen: Where I live in Tennessee it is difficult to find a 200-yard range. I am going to have to though because I agree with you 100%. Plus, I need to measure the drop from 100 to 200 yards. I also need to chrono my loads.
Thanks so much to all of you for your suggestions. A few other things......I do very careful case prep but I do not crimp my cases. I am using Forster dies and they seem to be of good quality. However, I have no way to check bullet run out. I am also 66-years young and not as steady as some of you younger folks out there. I do want to compete in some 600 and 1000 yard competitions though. Two years ago I won a 1000-yard shoot. It was the first one I ever entered. I appreciate any and all advice you fellers can give me soz I can get as good a shooter as possible.