Well of course, but it's the velocity that matters.Doesn't barrel length affect velocity, tho.....?
You can't hurt the Berrys 230 RN in .45 ACP even at +P pressures.
Well of course, but it's the velocity that matters.Doesn't barrel length affect velocity, tho.....?
And I get that, some folks just don't like them. I turned to them for plinking way back when they cost just a little bit more than lead, were accurate enough to suit my purpose(s), and I didn't have to worry about lead levels (Long story) Nowadays some jacketed bullets are cheaper than plated, and coated has taken the slightly more than lead catagory, although just like plated before them, are widening that gap.Still don't get it but I will never use a plated bullet in my life time either.
I get about 1000 fps with a 230gr from a 18" and 850 fps from a 5" in 45 acp.
Doesn't matter, just the velocity.
Also on Berrys website:
“Recommended velocity: 825-975 fps.”
So the consensus is Alliant is posting questionable reloading data on their website?
That's what it looks like from the responses in this thread.So the consensus is Alliant is posting questionable reloading data on their website?
Only use published data - unless they say not to. The internet is awesome.
So the consensus is Alliant is posting questionable reloading data on their website?
More likely higher slide velocity results from softer bullet deforming/expanding bullet base quicker to seal with the barrel to produce higher chamber pressures.Soft bullets have less friction in the bore, thus higher slide velocity.
They are best loaded to the minimum requirement for function.
I had not thought of that. You might be right.More likely higher slide velocity results from softer bullet deforming/expanding bullet base quicker to seal with the barrel to produce higher chamber pressures.
Yes, I agree that lower powder charges should be considered for softer bullets.
I use 4.8-5.0 gr of W231/HP-38 with 18 BHN MBC 200 gr SWC but with softer 12 BHN 200 gr SWC, even a light powder charge of 4.0 gr Red Dot/Promo works well to produce accurate target load.
Well, now, firstly, Alliant says straight up to back off 10% of their published data to get a starting load.So the consensus is Alliant is posting questionable reloading data on their website?
Speer has done it quite a few times with the Gold Dot...Not sure why anyone would want to develop a +P load with a plated bullet….
Yes, not all plated bullets are created equal.Speer has done it quite a few times with the Gold Dot...Not sure why anyone would want to develop a +P load with a plated bullet….
That kinda sums up the theme of the thread.Yes, not all plated bullets are created equal.
They responded:Your website recommends 7.3 grains of Unique for 230 CPRN bullets. After much discussion on my favorite gun website (thehighroad.org), the consensus is that this is excessive. Does Alliant wish to update that recommendation?
I specified I intended to use Berry’s 230 grain plated RN bullets.That data is for the Speer CPRN bullets, NOT your Berry’s bullets. Load data is developed for and specific to the bullet, not the propellants. The data that you see listed is the max charge for a Speer bullet to be reduced by 10%. This data conforms to SAAMI standards for pressures. So no, there will be no changing of our data.
Thanks,
Duane V. /Technical Service Representative
2299 Snake River Ave.
Lewiston, ID 83501
Alliant/Blazer/CCI/Speer
I'm glad to know someone is thinking about bullet rotation.I don't use/shoot plated bullet. I've read posts and saw pictures that others have posted about plating failures. Never really could rap my head around the 1250fps max thing.
As joneb already stated, what bbl length?
So basically the pressure of the load doesn't matter, it's a velocity thing per Walkalong's post.
That brings me the next thing I have a hard time understanding. So if it's a velocity thing then why doesn't a 1 in 10 twist have more affect on the plating then a 1 in 16 twist?
90,000rpm's VS 56,000rpm's
Both twists are at the 1250fps max, you'd think the extreme 90,000rpm's of the 1 in 10 twist bbl would have more of an affect on the plating.
So basically a 20,000psi/1250fps 357mag load in a 20" bbl'd 1 in 38 twist marlin lever action (24,000rpm's/micro groove rifling) will max out the plating the same as a 35,000psi/1250fps 9mm load in a 5" bbl'd 1 in 10 twist semi-auto pistol (90,000rpm's/ballard rifling)