[Howa 1500 (308)]

As mentioned I wouldn't rule out the fact you can't use PPU in the rifle and neither is at fault. A quick google shows up similar problems, one suggestion if it happens again is to let the rifle cool and see if the case is easier to extract.

[Howa 1500 (308)]

1 hour ago, steve_b_wales said:

 I mentioned that they were new Lapua cases and the reply was that 'they' are made slightly smaller to fit any chamber, unlike factory loaded ammo'. I replied that factory loaded ammunition should fit any chamber it's made for!

I had a similar problem with my .308 when it was new, also with the PPU rounds. Some would not chamber and the RFD was unable to help. I eventually discovered SAAMI guidlines mean a .308 rifle has to have a minimum chamber headspace of 41.40mm but a 308 case could have a headspace up to 41.50mm. So a maximum length round will not fit into a rifle with a minimum length chamber. I also gather the firing pin on a new rifle can also stick out slightly making it hard to chamber a long round. The Lapua brass may well have a shorter headspace and a sizing die may well size the brass to the minimum length. I've never had any problem with them.

I don't know if this has anything to do with your problem as I don't understand why they will not extract after firing.

[Best recycled cases for reloding]

3 hours ago, figgy said:

If your using once fired OF just be aware there are two primer sizes. Eley and Maxam like Rio etc all use a slightly larger primer hole and you'll need the suitable Rio 209 primers, the rest use chedite CX primers.

Interesting thanks, that explains my loose fitting primers in my once fired Eley .410s.

[Gunpowder]

I wouldn't of thought so otherwise it would be cheaper to get powders delivered from shops.

From: https://personal.help.royalmail.com/app/answers/detail/a_id/96/~/prohibited-goods---personal-customers#Explosives

Quote

 

Explosives (including fireworks, flares, blasting caps, party poppers, Cracker snaps)

Any chemical compound, mixture or device capable of producing an explosive or pyrotechnic effect with substantial instantaneous release of heat and gas is prohibited e.g. ammunition, blasting caps, Christmas cracker snaps, fireworks, flares, fuses, igniters, nitro-glycerine and party poppers.

International  - Not allowed in the mail

UK - Not allowed in the mail

Items that appear to be prohibited explosive ordnance may be subject to additional checks and delays.

 

 

[.410 Brass & Alliant 410 powder]

I don't mind warnings but, as mentioned, I have reloaded a fair bit over the years and am fairly careful.

Plenty of people seem to use nitro powders in the magtech cases, this old thread for example: https://forums.pigeonwatch.co.uk/forums/topic/105920-410-brass-cartridges/

I've seen it mentioned the brass cases are at least as strong as plastic, but I'll be cautious and others can make up their own mind.

10 hours ago, saddler said:

First thing I'd try is a different brand of primer

I'd also try a slightly wider card/wad - you are aiming for a good tight fit

Thanks. I was also wondering if I should use a magnum large pistol primer as other similar powders would use a magnum primer in a pistol case. (I'm assuming a large rifle primer wouldn't be wise?)

Certainly the .430 nitro card seems to fit a bit too easily but you can't buy anything around .435 so I'll have to make some of my own.

[.410 Brass & Alliant 410 powder]

1 minute ago, hafod said:

I personally wouldnt reload 410 brass cases with any smokeless loads black powder yes not a problem

Why is that? Not arguing, but curious. Plenty of people seem to load .410 in brass and the comments I've seen suggest they should cope better than plastic. However, the description of the MagTech cases does say for use with black powder.

On the BP note, could you use something like Pyrodex or 777?

[.410 Brass & Alliant 410 powder]

Thanks for the welcome and replies. Yes, brass cartridges do seem a bit more difficult than plastic but that's half the appeal.

I have no problem at all sourcing primers for the brass cartridges.

I've used the four ten site a fair bit but they don't seem to have a forum or any specific brass cartridge data, unless I've missed it.

2400 was another choice and it seems SP3 might be another but it would be useful to know if the powder is at fault or something else such as too small a nitro card.

[.410 Brass & Alliant 410 powder]

Evening all, this is my first post so be gentle. I have a fair bit of rifle & pistol loading experience but little shotgun.

I fancied trying the MagTech brass .410 cases and sorted out the appropriate .430 nitro card, wads and .450 overshot card etc. I don't have specific load data so chose a starting powder level by looking at the data for the plastic cases on the Alliant site.

The problem is they often don't fire or they don't fire well. I'm aware of the need to compress the powder and to glue in the overshot card (using Duco Cement) but even then they are a bit hit and miss, and when they do fire they leave a lot of fouling in the barrel.

Does anyone use Alliant .410 in brass cases and if so does it work? Any advice on what else to try?

I get better results if I lightly roll crimp the brass case but, long term, I'd rather not do this. I note the actual internal measurement listed for the cases is .433 and I don't know if a nitro card wider than .430 would help?

Does anyone know where I can source load data specific to the MagTech .410 cases? Should I be using slightly more powder than a plastic case? Would I be better of with a different powder?