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N320 and coated bullets

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Is n320 to hot to shoot with coated lead bullets.

Tried some over the weekend and they did fine but were a little smokey. Would lead be any different? I can lead and coated locally but I'm just starting to load .40 cal and don't know much bout it.

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In this muggy weather everything smokes. N320 is a great powder for coated lead but in high humidity with the sun just right a water gun smokes.

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I use 320 with my own coated 180s. I don't notice the smoke but I went from shooting lead with Titegroup in my 45 and that smoked like a train!

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It's one of the less smoky powders I've used with lead or coated. The quality of the coating, or more specifically the quality of the coating application process, can make a big difference. Also make sure you're not scraping it off when seating, or cutting into it when crimping.

Uncoated lead will be pretty smoky but you may find it acceptable depending on wind, sun angle, etc... I prefer coated.

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I found N320 to be too smoky with lead, WST was smoky, but not unacceptable. Don't notice the smoke much with coated and N320.

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What are y'all's thoughts on ha-6 and sillouette ?

too slow on the burn rate, but they will work.

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Any coated bullet is going to smoke, but using a cooler burning powder gets less smoke. N320 or Ramshot Competition makes a great 180 load in 40.

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no smoke shooting N320 and Bayou 180s in my hybrid. Only thing the guys I shoot with talk about a slight electrical smell, like over heating/burning wiring. I don't notice it and I am shooting in south florida 90+F with 90%+ humidity.

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N320 on a Bayou 180g shoots great for me. I have been loaded them since I found the bayous. I also have been having good luck with Winchester WSF. Its a little more dirty but a much cheaper and easier to find power if you want a slower burning power. I loaded WSF @ 1.180 OAL and can notice a difference in the recoil. (over the shorter rounds)

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I have loaded and shot 30k rounds of bayou 180 grainers with n320.

I do not notice any smoke and really like this combo. Very accurate and smooth.

My major load is 4.7 of n320 with an OAL at 1.2, which gives me 170pf.

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I worked up a batch of 180gr Blue Bullets with 4.5 of N320 which put me right at 170pf out of my M&P Pro .40.

Recently, I ordered some Blue Bullet 200gr and have been looking everywhere for load data. Finally found this: http://www.k8nd.com/documents/hl40sw.pdf Lots of load data for different bullet weights and types.

One of the VV-320 Loads shows 4.0 N320 over a Moly Coated TC getting 181.2PF.........can anyone verify similar results or am I comparing apples and oranges?

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That web site is great to double check loads against but all the data is multiple years old. Some powders like titegroup and n320 seem to have got progressively slower in the last few years.

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I'm loading 4.5 grains of n320 at 1.137 and it chronoed 172 using some coated bullets that are manufactured locally.

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N320 with Bayou 147's in 9mm and N320 with Bayou 200's in Limited. Very little smoke, runs fine.

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N320 with coated should be fine as long as seating the bullet doesn't scrape off the coating

If you are scraping the coating off, then you need to increase the bell on the case before you seat the bullet.

You should not scrape the coating off during reloading.

Edited by cactusbrew

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I'm loading 4.5 grains of n320 at 1.137 and it chronoed 172 using some coated bullets that are manufactured locally.

Can you tell me what the barrel length is?

N320 with Bayou 147's in 9mm and N320 with Bayou 200's in Limited. Very little smoke, runs fine.

Can you share more info on your reloading data (barrel length, COL, charge) if you do not mind?

I just got a ton of N320 and 200gr coated bullets, and so far, have gotten mixed/ confusing reloading info for the combo.

Thanks!

Thanks guys!

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Here is my data with coated 180s and N320.

Description: .40 180 gr VV N320 4.2gr
Notes 1: STI EAGLE 5.0
Notes 2: ACME 180gr
Distance to Chrono(FT): 1.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 180.00
Temp: 85 °F
BP: 29.77 inHg
# FPS FT-LBS PF
10 944 356.23 169.92
9 926 342.78 166.68
8 943 355.48 169.74
7 933 347.98 167.94
6 921 339.08 165.78
5 914 333.95 164.52
4 920 338.35 165.60
3 937 350.97 168.66
2 925 342.04 166.50
1 933 347.98 167.94
Average: 929.6 FPS
SD: 10.0 FPS
Min: 914 FPS
Max: 944 FPS
Spread: 30 FPS
Shot/sec: 0.1
True MV: 930 FPS

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So what is your OAL with the Acme? Are you loading to SAMMI specs for 40

I load long 1.200 and cannot make major with N-320 at that low of a charge of 4.2. It takes me 4.7-4.8 with a 6 inch to make major using the 180 Acme.

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