.45 acp oal problem

The best new barrel price I found was 60 bucks US, but a used barrel could be had for half that I'm sure.

Here is what I gather on freebore in 1911's: Some have none. Some have lots. How'm I doing so far?

If there is little freebore, requiring short seating and therefore lower case capacity, pressure spikes early, but if we freebore a barrel further, the bullet may be seated further out, allowing more powder so if we can use a slower burning type and we can use the whole barrel to accelerate - stay with me - so we can get a bullet going faster out of the same gun - so the target gets deader.

If I have time tomorrow, I might drive some .45s down to 1.10 COL and see what they do over a chrony - I think that bullets that went 780 average when seated to 1.20 will go 825 when seated to 1.10. The effect of decreased case capacity would be greater if the case is full - I think - hmmm - but I am not sure....... I have seen otherwise - where compressing the load began to slow the burn down.

Confusion sets in.

All argument rises to a level of complexity that is not understood, and the conclusions are worthless.
 
Well sir, thanks very much for all yuor help. I think the issue has indeed been nailed down to a lack of freebore.
What I meant about pushing the round intothe chamber was indeed that the bullet is not being pushed further into the case, but the rifling is making contact with the bullet, not visibly engraing it but grabbing it enough to make it ahard to pull out. I'm going to have a go at the cast bulelts today. I just started casting,so as of right now my bullets really aren't too good, though they are getting better. If you would like I'll send you some down to try, and you can tell me if they shoot okay.
 
Sir - well - hmmm - Sir --- Sir - ability to think goes down as the rim of my hat gets tighter.

Maybe you have already spent time on castboolits.com. Reading on their site is always a treat - the Nutz could sure learn about manners from them.
 
Made up some dummy rounds with the cast bullets today, and ended up getting proper chambering at right around 1.17,so I'm happy with that. My manual list 5.0gr Unique as max,for 810fps and less than 10000psi, which seems pretty mild. I'll load up some real ones and see how they shoot. Turns out I don't even need to put them through the sizing die,they chamber fine as cast.
 
Back
Top Bottom