Hello! I'm hoping to get some confirmation / wisdom from CGN here on reloading. I'm a newbie to reloading. I have an IBI 223 Wylde barrel on a Tikka T3X that has been shooting factory ammo from Lapua (69 Scenar L) and Hornady (73 / 75 BTHP) really well. I was hoping to reload to tweak the accuracy - bought all of the toys, etc.. was worried I would blow myself up.. but fact is that I can't even get a round to chamber.
The brass is from the factory 69gr Lapua Scenar L that I shot. I figured for a newbie I should at least shoot factory ammo first, then just reuse the fireformed case. After shooting all 50, I used the Lee Neck Collet on them and did not do a full length resize.
When measuring the distance to lands with the Hornady Bullet Comparator, I got 1.8765", so naturally I tried to reload at 1.856" for a newbie 0.02" from lands, resulting in an OAL of 2.24". None of the rounds would chamber - I couldn't close the bolt. They came off the magazine just fine. After getting home and pulling all the bullets, I created the dummy round to see if I could get it to work. I could chamber if the OAL went to 2.230". Anything bigger wasn't going to chamber. The 2.230" extracted just fine. The 2.24-2.26" that I tried, and also tried a Barnes 62gr TTSX... they basically got stuck and I had to knock it back out with a cleaning rod. Case length is 1.76", which I read is acceptable.
So the question to CGN is what is the problem and where do I go from here? There seem to be some ideas on reddit... including full-length resize.. Or having to buy some other measuring device to find out how big the chamber is... or something to do with neck tension or something to do with the extractor. I could use some help in deciphering which piece of advice to follow.
Thanks!
The brass is from the factory 69gr Lapua Scenar L that I shot. I figured for a newbie I should at least shoot factory ammo first, then just reuse the fireformed case. After shooting all 50, I used the Lee Neck Collet on them and did not do a full length resize.
When measuring the distance to lands with the Hornady Bullet Comparator, I got 1.8765", so naturally I tried to reload at 1.856" for a newbie 0.02" from lands, resulting in an OAL of 2.24". None of the rounds would chamber - I couldn't close the bolt. They came off the magazine just fine. After getting home and pulling all the bullets, I created the dummy round to see if I could get it to work. I could chamber if the OAL went to 2.230". Anything bigger wasn't going to chamber. The 2.230" extracted just fine. The 2.24-2.26" that I tried, and also tried a Barnes 62gr TTSX... they basically got stuck and I had to knock it back out with a cleaning rod. Case length is 1.76", which I read is acceptable.
So the question to CGN is what is the problem and where do I go from here? There seem to be some ideas on reddit... including full-length resize.. Or having to buy some other measuring device to find out how big the chamber is... or something to do with neck tension or something to do with the extractor. I could use some help in deciphering which piece of advice to follow.
Thanks!
Last edited: