Trailboss loads

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Gun Barrel Ecologist
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Trailboss loads

Post by Gun Barrel Ecologist »

Anyone got one for the .223?

IMR suggests 4g under a 55g pill for 1074fps but I'm hoping for a load of similar velocity with a 40g V Max - should I start at 3g? :?

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Re: Trailboss loads

Post by SPEEDY »

Carefull going to light with the powder, tends not to seal the case neck too well.
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Re: Trailboss loads

Post by Ultrabat »

SPEEDY wrote:Carefull going to light with the powder, tends not to seal the case neck too well.
What if you crip the case?

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Re: Trailboss loads

Post by Gun Barrel Ecologist »

Presumably under loading will just see the projectile fail to leave the barrel, now crimping and underloading :confusion-shrug: :confusion-scratchheadyellow:

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Re: Trailboss loads

Post by icebug »

Just make sure that you use brass which was shot at least once (or even better twice) from that particular barrel.
Then it's "modified" and aligns better to the chamber which makes it seal better.
What is the twist rate of your .223 barrel? Are you sure it will stabilize the bullet @ 1050fps?
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Re: Trailboss loads

Post by Ultrabat »

Gun Barrel Ecologist wrote:Presumably under loading will just see the projectile fail to leave the barrel, now crimping and underloading :confusion-shrug: :confusion-scratchheadyellow:
Not advocating underloading and i dont know a TB load for the 223 as i have never tried to load sub sonics for it.

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Re: Trailboss loads

Post by SPEEDY »

Ultrabat wrote:
SPEEDY wrote:Carefull going to light with the powder, tends not to seal the case neck too well.
What if you crip the case?
no that wont help, the low pressure isnt enough to expand the case and you get blow back down the outside of the case (I have been there) the other problem is secondary explosion, and under load can be a lot worse then medium over loading and can split or blow up the case.

When working on light loads I like fill 75-80% of the case with the slowest powder I can get.
Trail boss is good for that as it has a lot of bulk per weight.
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Re: Trailboss loads

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There are no fleas on the 9.3s


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Re: Trailboss loads

Post by Gun Barrel Ecologist »

icebug wrote:Just make sure that you use brass which was shot at least once (or even better twice) from that particular barrel.
Then it's "modified" and aligns better to the chamber which makes it seal better.
What is the twist rate of your .223 barrel? Are you sure it will stabilize the bullet @ 1050fps?
Hmm, so if you're not sure what rifle it was last shot in and FL resized it back to minimum you've done the wrong thing :doh:

It is a 1 in 9 twist barrel AFAIK

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Re: Trailboss loads

Post by SPEEDY »

Depends on the load, if its too light yes, if its not then its fine.
It all has to do with the brass expanding to seal the chamber.
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Re: Trailboss loads

Post by Gun Barrel Ecologist »

Well after resizing (probably too far) and priming I followed the instructions above.
Filled to case neck is 8.6g of TB, 0.7 x 8.6 = 6.02, so following IMR instructions we have a starting load of ~6g
IMR load data from http://data.hodgdon.com/cartridge_load.asp lists 4g under a 55g in the max loads column :confusion-scratchheadyellow:
Looks like I'll have to load some with 4, 5, & 6g and see what groups and doesn't scare the neighbours :confusion-shrug:

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Re: Trailboss loads

Post by SPEEDY »

.22 and them new heavy pill shorts, quiet as caps and will drop a fox at 40 yards.

Not as much fun to make and tinker with, easy but.
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Re: Trailboss loads

Post by deerhunter338mag »

GBE I did it for my 243 and found 5.8gr of trail boss got a 95gr pill going 1080fps. I used a mag primer as well. Only problem it was inconstant with accuracy as the powder didn't fill the case the best which played around with groups but 50-70meters was fine. I was told that the shotgun powder was better for the small cals as it fulls the case more and helps with accuracy. But I got sick of playing with it and gave it away.
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