.308 Powder choice

16.5 grain gets me subsonic, decent groups. Fired about a dozen and no issues. Saw comments both ways on the issue so gave it a try using a lead sled and abit of string. Checked all brass and no issues.
 
16.5 grain gets me subsonic, decent groups. Fired about a dozen and no issues. Saw comments both ways on the issue so gave it a try using a lead sled and abit of string. Checked all brass and no issues.
And what about obturation? No sooty cases?
In any case you should repeat this experiment (on the sled with your string) with the powder located at the bullet base, on the case head and evenly spread in the case.
 
16.5 grain gets me subsonic, decent groups. Fired about a dozen and no issues. Saw comments both ways on the issue so gave it a try using a lead sled and abit of string. Checked all brass and no issues.
Soooo. If you follow your delusions line of thought then instead of the many dozens of different powders manufacturers would only have to make one powder for all chamberings - regardless of bullet weight, all you then would do is just take the heaviest load of this magical powder for the biggest bullet, say .50 Browning and calculate percentages right down to .17, as required - what a great idea, why not put it to them? You really could be on a fortune….
In summary and with the greatest respect, you as an obvious newbie reloader clearly believe you are right and all the combined knowledge of everyone who has posted advising you to STOP are wrong. In this thread you have been provided with several bits of good free advice, which incidentally you sought, from a very experienced group but you now, for reasons beyond me, are sticking with your grenades loads. I assume you are an adult and well able to take (some) big boy decisions so on your own hand, eyes and face head be it my friend. Don’t say you have not been exceedingly well warned.
I am out of here.
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16.5 grain gets me subsonic, decent groups. Fired about a dozen and no issues. Saw comments both ways on the issue so gave it a try using a lead sled and abit of string. Checked all brass and no issues.
OK one further warning . Flash over detonation are hard to re produce to order but 100% occur ! Firing 6 OK means you still have a gun and a head . What about the 7 th or the 107th maybe you get to 4 digits
Powders exist where you just fill the case right up and you get a safe reduced power load , leaving significant space is dangerous
 
If people can suggest a powder and load I will use that. Rather than just admonishing me to feel high and mighty if someone can make a positive suggestion of a UK legal powder I can purchase for subsonic .308 or even a load someone else has developed that would be amazing.
 
"Rather than just admonishing me to feel high and mighty....."
I suggest you look again at your posts 41,43 and 45 then re-read the many responses?
If that is really why you think you had so many replies advising against your dangerous reloading practices you need to think again. Maybe you are missing the point about people in this community being willing to help and advise and, call me old fashioned, especially looking after each other - no better example than where naive and/or dangerous practices are evident.
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If people can suggest a powder and load I will use that. Rather than just admonishing me to feel high and mighty if someone can make a positive suggestion of a UK legal powder I can purchase for subsonic .308 or even a load someone else has developed that would be amazing.
Sorry mate but the people on here are trying to do you a favour. I don't know nearly enough about reloading to start experimenting. I use what the manual tells me to use and even then it's with caution.
I would never consider your 'wet finger in the air approach. I value my health too much for that!
 
Everyone's enjoyed telling me not to do something so when I actually heed your advice and ask for the correct loadings I get ignored. Which is it gentleman? Plenty of threads all over the internet of people successfully loading .308 subsonic - seeing as trailboss is now not allowed in the UK, what other powder would you suggest? It's not a hard question.
 
i think this thread should end right here bs
Why? I am actively asking for advice. I am not doing anything illegal. My question is, if someone would like to answer me, is that everyone's had great fun telling me what NOT to do - ok great - so ... What SHOULD i use? What powder should I use? (Noting that trailboss is now now for sale in the UK)
 
Why? I am actively asking for advice. I am not doing anything illegal. My question is, if someone would like to answer me, is that everyone's had great fun telling me what NOT to do - ok great - so ... What SHOULD i use? What powder should I use? (Noting that trailboss is now now for sale in the UK)
The safest way is to contact the makers of the powder you can purchase where you live and ask them.

The choice of powder, not the case fill, will determine the safety. I load IMR4350 in 30-06. 53 grains with a 165 grain bullet. I load 200 grain heat treated cast bullets with 19 grains of Accurate 5744. IIRC, the volume Density Measurement of these powders is very close (5744 might be a few percent higher, but it was small) so my target loads with a 200 grain bullet had about half the fill of my hunting loads with the 165. There was quite a bit of air space. I fired thousands of these loads in competition. Now, this is not license to load as light as you want with any powder. This data came from Accurate Arms and is specific to this powder.

In general, the admonitions were correct. You can quietly continue with what you deem to be working well or get a hold of the manufacturers and ask them about it. As with all things reloading, it's your choice. ~Muir
 
It might be me but in the thread you highlighted I saw no mention of your N135 (your post no. 41) which is a rifle powder whereas all the N300 series powders are pistol powders - if I am right and you are making this basic mistake you really are heading tor trouble - big time!. The two cannot and must not be interchanged or substituted with each others weights - that really is a mega disaster waiting to happen because their composition and controlled burn rate is so fundamentally different. As an intellectual exercise turn it round and with that logic try putting 47gns of N320 (pistol) into your .308 rifle with a 125gns bullet (by the way 47gns of N140 is an excellent 125gns load) but before you do make your will and make clear that there is no need to scatter your ashes as you will be severely "pre-scattered" before the funeral.
In the spirit of friendship I really would advocate that you stop what you are doing, pull any rounds you have loaded and then twice read a good reloading manual such as Richard Lee's excellent book before you again start on what can be a very enjoyable and rewarding pastime.
I wish you well and stay safe.
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Ok so should i buy and use one of those powders then? Im just looking for someone to suggest a replacement for trailboss
 
Ok so should i buy and use one of those powders then? Im just looking for someone to suggest a replacement for trailboss
Titegroup is listed on the Hogdgon website for subsonics and I use it extensively on the range for .308 and 7.62x54R but really I would not advocate subsonic on quarry especially in open fields. Their trajectory is like a rainbow at any distance and they do a very good impression of Barnes Wallis’s bouncing bomb so you need a very good backstop - hence range only for me. If you need more advice PM me.
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Fantastic thankyou @Foxyboy43 I will PM you re: titegroup.

I need the sub load as my permissions will now only let me shoot subsonic.
Just map the trajectory of a bullet from a 308 under 1050 fps at the muzzle , its not deer legal and its far harder to shoot well and more expensive to make than say a 22 lr with the standard subsonic mass produced factory load
Of course its a harder bullet that carries far more energy ( which you don't need for quarry up to the size of a fox ) hence ricochet risk is way up on a rimfire .
The energy gain over the rimfire however means in conjunction with a bigger lump of lead means an increased ricochet risk overvthe 22 rf
 
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