I'm just about to do my first .45 reload after months of reading and doing some .40 reloading on my instructor's 550. I bought a RockChucker to start and will get a 550 ASAP after spending too much time Wednesday with 100 pieces of brass, primer, and powder (Clays) and I'm about to seat the bullets.
My instructor/friend left for out of state to the NE until Sunday night and I don't wish to bother him as his dad is quite sick. On Wednesday I asked what he shot competition with as I know it's .45 Zero 230 gr and Clays (not Universal but plain Clays) and he said 4.3gr at 1.275 OAL.
I used my RCBS electronic scale to hand measure (trickle) 4.3 gr and the cases are all full and waiting for the bullets and crimping.
Looking at the Hodgdon site (after of course!) it shows 4.0 as the max load.
Of my .45s I am choosing an old P13-45 to start.
Will I probably be okay with 4.3? I really don't want to hand load 100 casings again as my RCBS powder disspenser is not yet mounted to the bench I'm building so I trickled each load out.
If this is too high can I increase the OAL a hair?
Thanks in advance,
You've already been given the correct answer....no, it's not smart to start out with a load that's well over published maximums. In fact, it may be more over book maximums than you realize. Are you using a 230gr FMJ or 230gr JHP? The two will take up different amounts of case volume at the same OAL, and the one that takes up more case volume (JHP) will cause increased pressures. So, a max load with a 230gr FMJ would likely be over max pressures with a 230gr JHP. That's why you'll see slightly different data for two bullets of the same weight, from the same company, but of different types.
Adjusting the OAL to lower pressures is not the proper way to go about it. For one, it's unreliable because you don't know how much change you need to reduce pressures a set amount....in short, it's a wild guess. Pick the OAL for what works well in the gun, and what is reasonable based upon the loading guides you have. Adjust the amount of powder to keep within published limits.
The other thing people think makes a difference in pressure is crimp....it may cause a very slight change, and does so more with revolver cartridges with bullets that have a cannelure where you can roll crimp them, but it's not a means for adjusting pressures....we do that with how much of the gray stuff we dump in the empty case.
Please don't take this as being mean or insulting....I'll be direct because it's a safety thing and everyone deserves straight talk when it comes to safety
Go get a couple of reloading manuals and really read them. Don't just use them as recipe books. The Lyman manual has a ton of good info in it. After you've read them you'll have a better understanding of the fundamentals and it'll serve you for as long as you're loading. It's great to have a friend help you get started, but unless they're going to spend hours and hours teaching you all of the things you really need to understand, you'll still need to get the info from somewhere...that's where the manuals come in. R,