Advice need from you experts please

[catkiller45]

My plan is to build another cartridge rifle....45-120 in fact,,,,,

I am thinking of heavy barrel in 1-18 twist and 28 inch length...

Action either rolling block or falling block----which action would you
all choose and WHY so?

What about the 28 inch barrel? I figured the 28 inch would keep the
weight about right for N R A match's...Thanks--John[smilie=b:

[wills]

I understand you can have some clearance problems with rollers and the longer cartridges.

[catkiller45]

You mean with the sight or what are you saying?

[SharpsShooter]

No with the hammer. The hammer does not come back far enough to allow long cases to turn the corner.

45-120's are not noted for their inherent accuracy. I can think of a long list of better (to me ) choices.

SS

[catkiller45]

SharpsShooter====Your right...I never thought of that--Thanks......John

[BPCR Bill]

My plan is to build another cartridge rifle....45-120 in fact,,,,,

I am thinking of heavy barrel in 1-18 twist and 28 inch length...

Action either rolling block or falling block----which action would you
all choose and WHY so?

What about the 28 inch barrel? I figured the 28 inch would keep the
weight about right for N R A match's...Thanks--John[smilie=b:

John, cartridges of that capacity are best left to the long range matches. Recoil is also a consideration. You want as heavy a barrel as you can get, and get it long. A longer barrel is more conducive to burning all that powder, and I would recomend a 34" spout. As for the action type, definitely a falling block, not a roller. Same reason as stated before, the rollers have too much interference for the big panatellas. The hammer has to be worked down to even get a 45-70 in. Some guys are shooting the 45-90's in silhouette with good succes, but the 45-70's and 40-65's are no strangers to victory either.

Regards,
Bill

[wills]

Why not get a 45-90 with a 34” 1/16 twist? If you actually need it to do something it won’t do you can probably rechamber to 45-110 or 45-120 cheaper than you could cut back a 45-120 if you didn’t like it.

If you look at match results, you will probably find few matches are being shot or won with the 45-120.

[missionary5155]

Good afternoon
I have 3 Rollers. Another factor is the lock time. Rollers are inherantly SLOW lock time. But are they ever SIMPLE ! Beveling the hammer top is no big deal by the way.
Lock time to me would be the most important factor. If I did not just like Rollers I would sell them and get a highwall. But I am hooked....
God Bless you !

[catkiller45]

All good thought and I really appreciate it....Somethings to keep in mind....I aint in no big hurry....John

[montana_charlie]

A fellow calling himself 'shortorder' asked a very similar question...and got very similar answers.
CM

[catkiller45]

OK-OK i APPPRECIATE ALL YOUR REPLYS AND ADVICE===I HAVE DECIDED NOT TO DO IT AFTER...IF I DO ANYTHING IT WILL BE A 45-90 OR THE 100...THANK YOU ALL FOR GETTING ME ON THE RIGHT TRACK...JOHN