Well, I am having an issue chambering reloads. This has not happened before so I am kinda of lost here. When I got to chamber a round I have to force the bolt down. It takes a moderate amount of force. Once fired it is extremely difficult to extract the case. The bolt lifts but it is impossible to pull bolt back and it takes me hitting the bolt handle back with something (rubber mallet for instance).
I have rechecked my notes by taking measurements again (this will be noted by 'CONFIRMED').
Springfield 30-06 (remington 700)
C.O.A.L. to lands: 3.440 CONFIRMED
My reloads are 3.428 (aka 3.430). This is a purposeful 0.010 off the lands.
My notes indicate this should result in a Case bottom to Ogive (CBTO) of 2.8135. My reloads measure a CBTO of 2.8130 CONFIRMED
I took one of the rounds that is being troublesome and ran it back through the seating die and move the bullet deeper into the case. This measured a CBTO of 2.719 and a COAL of 3.346 which well below my "to the lands" COAL measurement of 3.440. Tried to load this round, same issue.
At this point I grab a factory loaded hornady 178 gr eldX and it chambers and extracts just fine.
I measurement neck diameter of hornady factory load (.3325) and the neck diameter of one of my loaded reloads (.3355). My notes indicate my loaded neck diameter has been .335 and I am using a neck bushing of 0.333.
Below is a picture of the factory hornady round next to one of my reloads (lapua brass, 155 gr lapua scenar).
Any ideas?
Too add to this mystery, this was not a problem when I developed this load...
I have rechecked my notes by taking measurements again (this will be noted by 'CONFIRMED').
Springfield 30-06 (remington 700)
C.O.A.L. to lands: 3.440 CONFIRMED
My reloads are 3.428 (aka 3.430). This is a purposeful 0.010 off the lands.
My notes indicate this should result in a Case bottom to Ogive (CBTO) of 2.8135. My reloads measure a CBTO of 2.8130 CONFIRMED
I took one of the rounds that is being troublesome and ran it back through the seating die and move the bullet deeper into the case. This measured a CBTO of 2.719 and a COAL of 3.346 which well below my "to the lands" COAL measurement of 3.440. Tried to load this round, same issue.
At this point I grab a factory loaded hornady 178 gr eldX and it chambers and extracts just fine.
I measurement neck diameter of hornady factory load (.3325) and the neck diameter of one of my loaded reloads (.3355). My notes indicate my loaded neck diameter has been .335 and I am using a neck bushing of 0.333.
Below is a picture of the factory hornady round next to one of my reloads (lapua brass, 155 gr lapua scenar).
Any ideas?
Too add to this mystery, this was not a problem when I developed this load...
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