bullet pull for 7mm rem mag

[blade]

How many pounds of pressure should it take to move a seated 7mm rem mag bullet if neck tension is correct?

 

[dkhunt14]

Depending on the condition of the brass and how long they were loaded, it could be a lot. Especially if they started to bond. Matt

 

[blade]

Depending on the condition of the brass and how long they were loaded, it could be a lot. Especially if they started to bond. Matt

new loadings. What is minimum pull weight that you can have and still maintain accurracy?

 

[dkhunt14]

new loadings. What is minimum pull weight that you can have and still maintain accurracy?

I don't believe their is a minimum. I have seen guns shoot good with lots and some with very little. I use a lot more tension then most. I load into the lands and don't want the bullets moving when I shut the bolt on them. I also don't want to let a bullet stick if I have to open the bolt. Also I have found accuracy to better a lot of times with more tension.

It all depends on the gun and you have to test. What works for one might not be the best for another. I have seen guys soft seat (no tension) and once in awhile they shoot a good group but usually not consistently. I shoot 1000 yards and this is what I see from my testing and seeing other targets. Matt

 

[blade]

I don't believe their is a minimum. I have seen guns shoot good with lots and some with very little. I use a lot more tension then most. I load into the lands and don't want the bullets moving when I shut the bolt on them. I also don't want to let a bullet stick if I have to open the bolt. Also I have found accuracy to better a lot of times with more tension.

It all depends on the gun and you have to test. What works for one might not be the best for another. I have seen guys soft seat (no tension) and once in awhile they shoot a good group but usually not consistently. I shoot 1000 yards and this is what I see from my testing and seeing other targets. Matt

Well Matt the reason for asking is i have been doing some testing with the bathroom scales. Seems as though between 80 and a 100lbs seems to be the sweet spot. I annealed some cases i had necked sized 8 times after my neck tension started fading and i cant get more than 60lbs with them with collet die maxed out and crimped lightly with the lee factory crimp. Im getting about .002 neck tension. I have already anneal once and this was the second time. I use templac when i anneal so i dont think i over annealed. Im not sure what i need to do here. My sizeing mandrel measures .280. I had to take the necks down to .010 to clean them up. Its to thin but privi brass is all i have at the moment and it weights in the .260 range and with this long chamber i have to stay with heavier brass if i want any use out of it. Any suggest, comments or snood remarks?

 

[dkhunt14]

I don't crimp anything. I believe it hurts accuracy. I don't have a tension guage on my Arbor press but I did some on my buddies. I have ran from the 30 pounds or more on a Dasher to over 80 pounds on my WSM. The Dasher only has .010 turned necks so it is harder getting a lot on them. I only worry what the targets look like and if the bullet stays put. I use bushing dies and will tighten up the bushing to make more tension when I test. If it gives better accuracy, I will go tighter and see if it gets better. Matt

 

[blade]

I don't crimp anything. I believe it hurts accuracy. I don't have a tension guage on my Arbor press but I did some on my buddies. I have ran from the 30 pounds or more on a Dasher to over 80 pounds on my WSM. The Dasher only has .010 turned necks so it is harder getting a lot on them. I only worry what the targets look like and if the bullet stays put. I use bushing dies and will tighten up the bushing to make more tension when I test. If it gives better accuracy, I will go tighter and see if it gets better. Matt

im considering getting a bushing die. Ive gotten a good lesson on neck tension here lately. I would be fine with what i have if i didnt have to turn the necks so thin. Im talking a .003 difference in neck wall thickness. I need baldly to fine some brass that is close to the privi. Something a little more concentric.

 

[blade]

im considering getting a bushing die. Ive gotten a good lesson on neck tension here lately. I would be fine with what i have if i didnt have to turn the necks so thin. Im talking a .003 difference in neck wall thickness. I need baldly to fine some brass that is close to the privi. Something a little more concentric.

260 gr.