Hello Ive been reloading 3 years and Im just starting to use montana gold 124g hp. Ive been using xtreme 124g rn. First the specs then Ive got a question. I have loaded the Montana Gold 115g hp before.
the barrel is a lone wolf. the gun is a glock 19.
So I've been using a oal of 1.130 on the xtremes in order to get the case to headspace on the case mouth. its a really accurate load.
Im having difficulty with the headspace on theMontana gold 124g hp. Im trying to make a nice target load. In order to headspace off the case mouth I need to seat these puppies to an oal of 1.060. When I do they slip in the chamber buttery smooth with a slight "thunk" when it lands. My last experiment with these, I used an oal of 1.090 and 3.8g of titegroup which, if you've used titegroup before, know its on the mid to bottom of the range. I was surprised to see signs of overpressure (primers starting to flatten out) despite this average load. At first I thought it was due to the oal but, after pouring over much load data, I realized that 1.090 wasn't that extreme for this particular bullet. I began to wonder if it was headspacing off the extractor because the bullet was too long. After dropping in one at 1.090 I realized that it was indeed too long. The bullet was making contact w the lands and I bet that was the reason the pressure was high enough to start to flatten the primers.
Heres my question. Im just not sure about using an oal length of 1.060 but thats definitely whats required with this particular barrel and bullet combo to get it to headspace properly off the case mouth. Would you just use the minimum load for titegroup and see where you were at? I just have no idea what the pressure might be like from an oal like that. Does that oal look intimidating to anyone else?
thanks
the barrel is a lone wolf. the gun is a glock 19.
So I've been using a oal of 1.130 on the xtremes in order to get the case to headspace on the case mouth. its a really accurate load.
Im having difficulty with the headspace on theMontana gold 124g hp. Im trying to make a nice target load. In order to headspace off the case mouth I need to seat these puppies to an oal of 1.060. When I do they slip in the chamber buttery smooth with a slight "thunk" when it lands. My last experiment with these, I used an oal of 1.090 and 3.8g of titegroup which, if you've used titegroup before, know its on the mid to bottom of the range. I was surprised to see signs of overpressure (primers starting to flatten out) despite this average load. At first I thought it was due to the oal but, after pouring over much load data, I realized that 1.090 wasn't that extreme for this particular bullet. I began to wonder if it was headspacing off the extractor because the bullet was too long. After dropping in one at 1.090 I realized that it was indeed too long. The bullet was making contact w the lands and I bet that was the reason the pressure was high enough to start to flatten the primers.
Heres my question. Im just not sure about using an oal length of 1.060 but thats definitely whats required with this particular barrel and bullet combo to get it to headspace properly off the case mouth. Would you just use the minimum load for titegroup and see where you were at? I just have no idea what the pressure might be like from an oal like that. Does that oal look intimidating to anyone else?
thanks
Last Edited: