Rossi 44-40 twist rate ??

[Hootmix]

Measured the twist of my 20" 44-40 src 90's model ,with cleaning rod & tight patch ,,??? "6" times can only get 1/2 of a twist ea. time ,, do that mean 1in 40 or 1in 38 , got me stumped . Wanting to shoot Lyman # 429667 240gn. ( mine cast @ 251-252 w/ my 11-13 Bhn. ) But if the twist is to slow ,,, what ya'll think ??

coffee's ready ,, Hootmix .[smilie=b:[smilie=b:

[Outpost75]

Rossi is one turn in 1 metre, or 39.4"

It will handle 240-grain bullets just fine.

[Hootmix]

Thank y'a Outpost75 ,, will be use'n TB & w231 ,, out of H4198 . Think'n about some RL-7 and see how it will work . I also slugged the bore (3 times ) thought my bore was .427 ,,?? miced at .428-.429 ? .431's should work .:smile:

coffee's ready ,, Hootmix .

[Outpost75]

Thank y'a Outpost75 ,, will be use'n TB & w231 ,, out of H4198 . Think'n about some RL-7 and see how it will work . I also slugged the bore (3 times ) thought my bore was .427 ,,?? miced at .428-.429 ? .431's should work .:smile:

coffee's ready ,, Hootmix .

I shoot .430 in mine, here are some loads:

Typical .44-40 Winchester loads in Rossi Puma with 20” barrel:

Ammunition___________________Vel@15ft, Sd, ES

Winchester 200 JSP factory load____1158 fps, 18 Sd, 51 ES

Handloads in Starline cases, with Remington 2-1/2 primers

Remington 200 JSP, 24.5 RL7_______1355 fps, 22 Sd, 74 ES

Hornady 200 XTP, 28 IMR4198______1642 fps, 20 Sd, 63 ES

Matts Bullets 215 LFN 28 IMR4198___1701 fps, 12 Sd, 41 ES

Matt’s Bullets 215 LFN 7.8 Red Dot___1273 fps, 15 Sd, 57 ES

Matts Bullets 215 LFN 35 Goex 3Fg___1172 fps, 28 Sd, 98 ES

Accurate 43-230G 7.2 Bullseye______1167 fps, 8 Sd, 25 ES

[Texas by God]

The one I had loved the simple Lee TL429240. It shot very well with 6 grs of Unique. (Little Dandy measure) my current 44-40 shoots 200gr rnfp over 10.5 grs Unique so well that I haven't tried another load yet. It is a Green Mountain barrel/ H&R Topper carbine.

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[pietro]

Rossi is one turn in 1 metre, or 39.4"




Per the horse's mouth, ALL Rossi Model 92's, regardless of chambering/caliber are issued with 1:30" barrel twist rates.

http://e.ampro.co.nz/product/678-rossi-puma-44-40-win-20-blued-?categoryId=7249

.

[Hootmix]

Thank you all ,, Hey Texas like you I want to find the " ONE " that fits my rifle . Slugged my bore w/ a cast 240 , miced @ .431 ( comes out 251 ) it miced at .430 ,, then slugged again w/ a .429 , 215gn. it came out miced at .429 ??? sooo not sure ??? Both cast @ 11-13 BHN ,, will load w/ same powder & primers and shoot it's the only way to find out .
coffee's ready ,, Hootmix .

[Texas by God]

Well, Hootmix-I lied. I did load 23 .429" Sierra 180gr hp to use up the box. Still 10.5 grs Unique- accuracy was good. I'm going to drag out that old Lee 240gr mould and try some next casting /loading session.

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[Hootmix]

Yes Sir ,, keep me posted on the 240gn.

coffee's ready ,, Hootmix .