my personal experience is there may be a difference but it matters not..for me. not in slightest.
the claybuster wads from gunworks are great..hold 1/2oz of shot so in 3" shell you will have 1/3 or payload forward of the cup.... its just how it is.
your overall height of components inside shell is most important bit.
the difference is in internal shape and dimensions of the shot shell..... in theory you COULD end up with gases going past..yeah nah not happening thing. we talking not huge amount of pressure in a shotshell.... the charts showing what happens by changing just one component over many loads eg same load five different primers...or five different wads...the worst results are still within acceptable pressure limits.
Micky do you have a link to these charts, I am still not feeling overly confident here, I have a confident understanding of how to reload CF rifle and what factors increase pressure when substituting components there, but shotgunning is a fairly new thing for me really and although I have been doing a fair bit of recent reading on reloading shotshell, the most I can really glean is 'don't substitute' and that there are some holes in my knowledge of the physics of shotgun barrel internal ballistics.Quote:
Originally Posted by Micky Duck
The problem being it's not like you can just dial up some data and then go and buy the exact requisite components. Some creative reading of the data or next level procurement skills are required to load a shell as per the data presented.
I am probably operating on the higher side of caution here, so apologies to all those that are finding this tedious. But it has worked for me so far in my reloading career and I am finding the .410 particularly useful, so the last thing I want to do is blow it up.
I also don't want to end up with some of the component for each different type of load but no components that are compatible enough to make a single load due to everything mismatching. I feel like I am half way to that point at the moment, so before I buy anything else, I want to know I am buying the right things.
Thanks all for your help so far.
its in the lyman manual...in primer section lol. if you hold the line I will go and look at what my loads were /are for .410 I played around a bit and then just settled on a simple easy recipe that works well....
hopefully your phone will be pinging about now...as shown 14grns of 296 with that red claybuster wad was my go to load.. same charge weight in both length cases...slower velocity in longer case with higher payload..... so if its ok in both of them with both those payloads...it SHOULD IN THEORY be ok for anything in between...those rio or gamebore cases etc look to right hand side of page and will see how low pressures are.