45 acp-185 gr- Magnus bullets

View previous topic View next topic Go down

45 acp-185 gr- Magnus bullets

Post by james r chapman on Sun Jan 24, 2016 5:27 pm

Trying to work up a light 185 gr recoil load for my 1911.

trying 3.6 gr Bullseye with the Magnus #801 cast button nose, #811 swaged swc and #814 swaged HP swc bullets.

All shot great, the #801 button nose was somewhat snappier than the rest. OAL 1.170 (matched to the Federal GM45B factory round.) good ejection and last shot slide lock.

Both the #811 and #814, OAL 1.250, felt somewhat lighter in felt recoil, stove piped rounds, and failed slide lockback.

Any ideas on why? is it the difference in hardness of cast v. swaged?

Should I just plan on the #801, or, go to a lighter recoil spring till the others work proper.


Last edited by james r chapman on Sun Jan 24, 2016 5:47 pm; edited 1 time in total (Reason for editing : corrected type bullets)

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by Jon Eulette on Sun Jan 24, 2016 6:32 pm

What recoil spring weight did you use?
Jon

Jon Eulette

Posts : 1155
Join date : 2013-04-15
Location : Southern Kalifornia

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by james r chapman on Sun Jan 24, 2016 6:41 pm

oh boy. it was the heaviest I had, probably 11-12
#


Last edited by james r chapman on Sun Jan 24, 2016 6:50 pm; edited 1 time in total

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by Wobbley on Sun Jan 24, 2016 6:49 pm

You could try pushing the 811 qnd 814 back a tad and see if that gets you a but more pressure and velocity which will give more recoil. But failing that, the 801 works and is accurate.

Wobbley

Posts : 631
Join date : 2015-02-13

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by Virgil Kane on Sun Jan 24, 2016 7:58 pm

I believe the bearing surface of the #801's is a bit longer than the other 185 grain SWC's and  more closely matches the 200 grain SWC's. More bearing surface IMHO would mean higher pressure and more recoil. Also you would have to check to see where the base of the bullets end up after seating in the case. If the #801's are deeper then there is less case volume and higher pressure for the same amount of powder.

Just a thought.

Virgil

Virgil Kane

Posts : 370
Join date : 2011-06-10

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by james r chapman on Sun Jan 24, 2016 8:19 pm

Virgil Kane wrote:I believe the bearing surface of the #801's is a bit longer than the other 185 grain SWC's and  more closely matches the 200 grain SWC's. More bearing surface IMHO would mean higher pressure and more recoil. Also you would have to check to see where the base of the bullets end up after seating in the case. If the #801's are deeper then there is less case volume and higher pressure for the same amount of powder.

Just a thought.

Virgil
hmmm.. interesting thought, I'll have to measure closely and report back!

added:
measured all three.
The #801 does have almost .070 more bearing surface than the #811, and being cast probably is the difference.
I think I'm going to leave well enough alone, and shoot the #801's for awhile.

Too early in my late bullseye career to find more than I need.

thanks

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by Dr.Don on Sun Jan 24, 2016 10:01 pm

I get really good accuracy with the 801's and 3.6 Bullseye.  Reliable too.

Dr.Don

Posts : 346
Join date : 2012-10-31
Location : Cedar Park, TX

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by james r chapman on Sun Jan 24, 2016 10:20 pm

Dr.Don wrote:I get really good accuracy with the 801's and 3.6 Bullseye.  Reliable too.
somewhere you mentioned that, and, that's what got me to try it.

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by Virgil Kane on Mon Jan 25, 2016 8:32 am

I also shoot the #801's but with 3.8 of BE and found it to be an excellent load for my 1911 Clark long slide with 30mm Ultradot slide mount and 16 pound spring.


Virgil

Virgil Kane

Posts : 370
Join date : 2011-06-10

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by Magnusbullets on Mon Jan 25, 2016 6:48 pm

The hard cast takes more pressure to start moving, versus the softer swaged, just as we have to run copper hotter.

Magnusbullets

Posts : 246
Join date : 2011-06-12
Location : ardmore, al

http://www.magnusbullets.com

Back to top Go down

Re: 45 acp-185 gr- Magnus bullets

Post by Sponsored content Today at 6:10 pm


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum