Harrynsw wrote:If I go ahead and copy a formula for a cartridge, say S&B 30/30 150 grain, it should shoot exactly the same???
Is there anything that causes deviation, and If so, how much??
Downunder wrote:Harrynsw wrote:If I go ahead and copy a formula for a cartridge, say S&B 30/30 150 grain, it should shoot exactly the same???
Is there anything that causes deviation, and If so, how much??
Yes
Powder (even down to batch)
Primers
Projectile weights
Neck tension
Run out
etc
Whilst chances are it won’t shoot “exactly“ the same through load development you’ll most likely be able to do better than factory loads.
Harrynsw wrote:If I go ahead and copy a formula for a cartridge, say S&B 30/30 150 grain, it should shoot exactly the same???
Is there anything that causes deviation, and If so, how much??
Downunder wrote:Harrynsw wrote:If I go ahead and copy a formula for a cartridge, say S&B 30/30 150 grain, it should shoot exactly the same???
Is there anything that causes deviation, and If so, how much??
Yes
Powder (even down to batch)
Primers
Projectile weights
Neck tension
Run out
etc
Whilst chances are it won’t shoot “exactly“ the same through load development you’ll most likely be able to do better than factory loads.
bladeracer wrote:Harrynsw wrote:If I go ahead and copy a formula for a cartridge, say S&B 30/30 150 grain, it should shoot exactly the same???
Is there anything that causes deviation, and If so, how much??
How would you copy a factory load without knowing what powder it uses?
Just work up your own load to do what you want to do.
Consistency is key, not just in the components but also in your technique. Be robotic during the process
JohnV wrote:Lots of assumptions here . The term "exactly the same " is very unlikely to apply .
What kind of deviation are you referring to ?
You don't know for sure how any load will perform until you try it in your gun .
The best way to proceed is select the basic components you want to use and then carefully work up a load that functions well in your gun .
You will not know what powder is used in S&B ammunition anyway because sometimes they use powders we can't buy and other times they blend powders .
northdude wrote:if you don't use s&b brass the internal case capacity might be different as well giving different pressure
PM3010 wrote:Hi there, I am fairly new to reloading and just going down the “ two thou Bump” process. I was wondering, and this is a question to the seasoned campaigners on this forum, Once I have my resizing die set up and happy with the out come, do I need to full length resize brass that I collect from the range or other sources that has been fired in other firearms? Or will my previously set up resizing die (set for the two thou bump in my rifle) do the trick. This is my thinking however I’m not really sure if I have to fully resize then so-called Fire form it for my rifle. Interested in the consensus of this forum. Thanks for you information in advance.
bladeracer wrote:PM3010 wrote:Hi there, I am fairly new to reloading and just going down the “ two thou Bump” process. I was wondering, and this is a question to the seasoned campaigners on this forum, Once I have my resizing die set up and happy with the out come, do I need to full length resize brass that I collect from the range or other sources that has been fired in other firearms? Or will my previously set up resizing die (set for the two thou bump in my rifle) do the trick. This is my thinking however I’m not really sure if I have to fully resize then so-called Fire form it for my rifle. Interested in the consensus of this forum. Thanks for you information in advance.
I run once-fired brass through the chamber first and any that don't chamber I size by bumping the shoulder to fit.
.
Blr243 wrote:Is moly available at gun shops ? Eg rebels or qge or shooters delight is local for me
Blr243 wrote:Is moly available at gun shops ? Eg rebels or qge or shooters delight is local for me
JohnV wrote:Blr243 wrote:Is moly available at gun shops ? Eg rebels or qge or shooters delight is local for me
For Moly powder you go to bearing supply outlets . Choose the fine grade . You want a dry lube for necks