221 Rem and H4198

[tjen]

Findly worked up a load with H4198, 205, hornady 45gr SP.

My rifle realy likes this bullet at a modest 2900fps, that is at max OCL of 1.830" (.50" or better). At 18.0grs I was seeing 3088fps with no pressure signs. The std-dev is in 16 "ish" from 17.1-17.4-17.7-18.0grs. I will have to play with the OCL and charge to see if I can find a velocity above 3000fps that will group just as good. Any where from 3000 to 3200fps would be fine.

One manual starts at 17grs and stops at 18grs and another starts at 18grs and goes to 18.9grs. And I have the BR4 to try as well. If you remember I used AA1680 and the BR4, the 205 primer did better with the ball type and 17.0grs worked very well for 3120fps but still not as accurate as needed and I would say more pressure for the same velocity H4198 will get, with out having to use the body bump dies every other loading.

I may get a Shilen factory contour barrel when they start doing the smith work late this year. I seem to have a large chamber on this used rifle so I am gonna keep the pressure modest till I get a new barrel. I think 3100fps is realy easy and the primer edges are still round too.

The 45gr Spire point has the same required velocity as the SXSP 50/55gr does so I think it should work well yotes and bobcats.

22-hornet 221Rem and 223Rem

 

[gerry]

That sounds like a neat round looks like it doesn't burn much powder.

 

[Oldtrader3]

Tjen, what rifle is this? It sounds awfully load sensitive and maybe an oversized chamber?

 

[tjen]

This 221 FB is still new to me and if a find a accurate load for the 45gr around 3000fps it will surve as a second rifle when hunting with a friend who does not have a varmit rifle or target rifle if at the range.

The Rem factory 50gr chroneys at 2990fps but realy blows out the case it is high pressure flat primers just starting to crater. The 45gr at 3000fps is far more mild on the case and if I have to bump the shoulder every few loadings thats OK. New CZ527 or rebarrel the 700? I love the 221Rem Fire Ball for its solid 200 yard yoting abililties. I have a CZ527 in 22-Hornet and it shoots the 45gr Speer at 1.723" OCL at 2850fps for .75" group if I lengthing the OCL and single load it .5" and better yet with 40gr HPV at 2980fps. If some one wanted a custom build the NULA model 20 in 221Rem would be a sweet light varmit rifle pared with VX3 4.5-14. (20 vartrage too)

Old trader3
It is a limited run 700 laminate. My take is it has a larger chamber may have been worked on, the lead is way long. I think you could load a 50gr BT as far out as possible with out touching them. This was a used rifle I picked up for $380 I forget the actual measurement, but went I first measure the lead with the 40gr berger set at OCL of 1.830" the gap was about 0.125". The trigger is chrisp and I guess about 2.5lbs. Still forget to check to see if it has been free floated.

 

[roadtoad]

18.0 grs h4198, 52 gr sierra hpbt

 

[Oldtrader3]

Tjen, did Remington chamber the .221 with freebore and make the chamber too long or did someone else do the work? I guess that you are not sure? You can set your dies back so that they match the chamber minus .002, in order to not have to set for length growth all of the time? I would have a gunsmith take a chamber casting and find out what is going on? Then you maybe can set your dies or have a new chamber cut?

 

[IdahoCTD]

You could set that barrel back a thread or two and run a reamer in to reset the head space.

 

[FOTIS]

My best load

221 FIREBALL	40 HORNADY VMAX	18/H4198	3140 fps 	REM	WSR Cap 	REM 700 CLASSIC rifle

 

[tjen]

I think I will shoot up my reloads from this rifle this summer and than send it to Shilen for a complete match grade rebarrel, squared action/bolt and piller bedding. They have a remmington factory sporter contour that what this rifle has and is pretty heavy in a .224 cal. So 24" FC contour in 12 twist with normally neck size (they make two neck diameters).

I think the 221rem has a 1:14 but for 40/45/50gr bullets specialy the longer tipped ones I thought 1:12 might be better. What do you think on the twist rate? The Berger 40gr HPV says for 1:15 twist or better and the 52gr 1:14 or better and these are HP's not longer tipped bullets.

From what I see with H4198 and this just with keeping with moderate pressures not max. 40gr up to 3200fps 45gr up to 3100fps and 50gr up to 3000fps. With a nice tight chamber I think these are fine maybe 50-75 fps less for what a certain rifle might like.

I got the 52gr berger and A-max at 3270fps with benchmark in my 223rem and this chamber is tight and I have loaded so far only three loading per case useing a type S neck die and they chamber fine have not needed trimming yet. (700SPS SS)

 

[IdahoCTD]

A 14 twist will handle up to and sometimes over 55gr bullets. The tip doesn't have much weight so it doesn't generally effect the twist. It's mostly about how long the jacketed portion of the bullet is.