45-90 to 45-70

[ARlife4me]

Are you able to use 45-90 brass and trim it to 45-70 length and chamber the brass as if it were 45-70? I'm not sure if case taper at the near 3 tenths longer will work after trimmed?

 

[Mallardhammer]

Hard to say. It might, 45-90 win has a .005 thicker rim, and .005 wider in the web.

 

[Tac-O]

The mouth might be too thick. Do you have starline 45-90?

 

[BillLarson]

Are you able to use 45-90 brass and trim it to 45-70 length and chamber the brass as if it were 45-70? I'm not sure if case taper at the near 3 tenths longer will work after trimmed?

I need 45-90 brass..... and have 45-70 to trade.....

 

[ARlife4me]

This is just a general question as for those needing 45-70 brass. Starline has 45-90 brass available on their site. @valleysnyper was trying to get 45-70 brass.

 

[ARlife4me]

The mouth might be too thick. Do you have starline 45-90?

No. No 45-90 at all, just trying to figure out possible answers.

 

[bpcrshooter]

I got tons of starline 45-90 brass, I can cut one down and measure it. You should be ok in doing that, I took a 45-100 and cut it down to 1.5in for a pistol cartridge that i was messing around with and factory hornady's went in no problem. Once cut you'd still have to run it up in a 45-70 size die to get the taper back, if you want it perfect.

 

[bpcrshooter]

For Sale - 45-70 Brass

200 pieces of Remington 1X fired brass. All from same lot. $100 shipped for 100 pcs brass plus two Frankford Arsenal boxes. If you want all 200 I will ship the works for $175 (minus 1 of the FA boxes as only 3 plus loose brass will fit in a medium flat rate box). PayPal F&F or PMO please.

www.longrangehunting.com

 

[Riceguy]

Are you able to use 45-90 brass and trim it to 45-70 length and chamber the brass as if it were 45-70? I'm not sure if case taper at the near 3 tenths longer will work after trimmed?

Are you able to use 45-90 brass and trim it to 45-70 length and chamber the brass as if it were 45-70? I'm not sure if case taper at the near 3 tenths longer will work after trimmed?

The Answer is yes, Once upon a time RCBS sold .45 Caliber brass called .45 Basic Cases for forming 21 different calibers. The brass case was 3 and 1/8 inch long, so you could trim it down to the caliber you needed. Price was $7.65 for 20 cases

 

[coloradocelt]

Its just like 44 mag and 44 special. You are able to make from 45 basic cases too.

 

[bpcrshooter]

Starline 45-90 brass was .001 thicker at the mouth and when trimmed to 45-70. You'll be fine with jacketed bullets. If it were me....its not and you choose to shoot cast bullets, buy a mold that is
.001 smaller than a fired case. It will perform much better with less leading.

 

[Critter Picker]

Mold size has nothing to do with brass size. Cast bullets should be sized .001 over barrel bore diameter.

 

[Mallardhammer]

Mold size has nothing to do with brass size. Cast bullets should be sized .001 over barrel bore

Pretty much the same exact result if your bullet drops .001 larger than fired brass, as bpcrshooter stated.

 

[Critter Picker]

Pretty much the same exact result if your bullet drops .001 larger than fired brass, as bpcrshooter stated.

Sorry, I missed the fired part.