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March 14, 2013, 10:54 AM | #1 |
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Join Date: March 14, 2013
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.45 ACP Reloading Question
Hi all,
I'm new to the forum and thought it'd be a great place to get some needed information. I've been reloading for a few months, mostly 9mm and some .243. I'm going to start reloading .45 acp, and will be using Vihtavuori N320, and would like to try out Rainier's 200 gr RN. Viht's manual only shows 185 gr FN load data, and I can't find the proper min/max loads with the above combination, neither on Rainier's site or Vihtavuori. Hoping someone has experience and knowledge to share. Thanks! |
March 14, 2013, 12:44 PM | #2 |
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Join Date: June 13, 2006
Location: Texas
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sorry no help here
someone will be along soon good luck & welcome Snake |
March 14, 2013, 12:51 PM | #3 |
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It is perfectly acceptable and safe to use data for a different but similar bullet. Use a manual from a different manufacture, find their 200 gr RN (you didn't specify if it was lead or jacketed - it does make a differance) and start at the that manuals minimum load and work yourself up.
Be aware of any pressure signs as you work up. Seat the bullet to its cannuler, or to where it will fit the chamber of your pistol. ETA: If the Rainier bullet is a plated bullet, use data for a a lead RN bullet.
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March 14, 2013, 01:15 PM | #4 |
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QuickLoad gives the following data. I have no experience with either the bullet or the powder and have not tested these loads. This is provided for information only. Use at your own risk
Code:
Cartridge : .45 Auto (ACP) (SAAMI) Bullet : .451, 200, RN Rainier Cartridge O.A.L. L6: 1.275 inch or 32.39 mm Barrel Length : 5.0 inch or 127.0 mm Powder : 12 Vihtavuori N320 Predicted data by increasing and decreasing the given charge, incremented in steps of 0.813% of nominal charge. CAUTION: Figures exceed maximum and minimum recommended loads ! Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time % % Grains fps ft.lbs psi psi % ms -08.1 64 5.51 933 386 15908 2584 100.0 0.688 -07.3 64 5.56 939 391 16201 2601 100.0 0.682 -06.5 65 5.61 945 396 16497 2618 100.0 0.676 -05.7 65 5.66 950 401 16796 2635 100.0 0.671 -04.9 66 5.71 956 406 17099 2652 100.0 0.665 -04.1 66 5.76 962 411 17406 2669 100.0 0.660 -03.3 67 5.80 968 416 17716 2686 100.0 0.654 -02.4 68 5.85 973 421 18029 2703 100.0 0.649 ! Near Maximum ! -01.6 68 5.90 979 426 18346 2720 100.0 0.644 ! Near Maximum ! -00.8 69 5.95 984 430 18667 2737 100.0 0.639 ! Near Maximum ! +00.0 69 6.00 990 435 18991 2754 100.0 0.634 ! Near Maximum ! +00.8 70 6.05 996 440 19319 2771 100.0 0.629 ! Near Maximum ! +01.6 70 6.10 1001 445 19650 2788 100.0 0.624 ! Near Maximum ! +02.4 71 6.15 1007 450 19985 2805 100.0 0.619 ! Near Maximum ! +03.3 71 6.20 1012 455 20324 2822 100.0 0.615 !DANGEROUS LOAD-DO NOT USE! +04.1 72 6.24 1018 460 20667 2839 100.0 0.610 !DANGEROUS LOAD-DO NOT USE! Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge Data for burning rate increased by 10% relative to nominal value: +Ba 69 6.00 1015 457 22184 2671 100.0 0.597 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 69 6.00 953 403 15778 2873 99.9 0.684
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March 14, 2013, 05:30 PM | #5 |
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Use data shown for a similar shaped cast lead bullet. Quikload is a great tool, but your OACL with a 200 gr. RN isn't going to be 1.275" which is max. cartridge length. Do you know how to determine OACL for YOUR pistol? If you loaded to say 1.250", that's not that much OACL variation for the lower operating pressure of the .45 ACP using the lower charges of N320 shown in JRH6856's QuikLoad graphic, but there should be cast lead load data available directly from the Vihta Vouri manual or load guides.
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March 14, 2013, 05:48 PM | #6 | |
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Location: Minnesota
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Quote:
We, at Rainier Ballistics, recommend using lead bullet load data when loading our bullets. There is no need for adjustment when using lead bullet load data. Our bullets are jacketed using an electroplating process and are softer than traditionally jacketed bullets; hence the recommendation to use lead bullet load data. If you only have access to traditionally jacketed load data, we recommend a starting powder charge directly between the listed minimum and maximum load, and you may use published load data found in reputable reloading manuals. |
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March 14, 2013, 06:27 PM | #7 |
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VV load guide (available on their website) has the following:
200 LSWC Intercast N320, 4.7 gn min 888 fps, 5.1 gn max 958 fps 200 FMJ CT Hornady N320, 5.0 gn min 855 fps, 5.4 gn max 928 fps Recommend you verify yourself as safe practice from their site. Neither of these gives you an exact match, but it should let you get a safe starting point. Get your COL by doing a plunk test. Google it if you are not familiar with the term. I use 5.1 gn N320 under a 230 gn FMJ FN for what its worth. |
March 14, 2013, 09:04 PM | #8 | ||
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Join Date: March 14, 2013
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Quote:
Quote:
So it seems like 4.9-5.0 would be a good place to start with the 200 gr RN. For the 9mm i load I run every case through the case gage after sizing/depriming, and then again after the final crimp. All go right in and fall right out, same with the barrel itself. Maybe I'm going overboard w/the checks. Thanks for the info everyone. |
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